Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
386 results · page 2 of 8
Aug 26, 2026Kimai before 2.53.0 contains an open redirect vulnerability in the SAML authentication success handler that accepts unvalidated RelayState POST parameters as reCVE-2026-80200 · Other software · kimai · reported by VulnCheckMedium 5.3
Kimai before 2.53.0 contains an open redirect vulnerability in the SAML authentication success handler that accepts unvalidated RelayState POST parameters as redirect destinations. Attackers with IdP access can supply malicious RelayState values to redirect authenticated users to attacker-controlled URLs for credential theft or phishing attacks.
- Product
- kimai
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Aug 25, 2026Joomla Extension - miniorange.com - Unauthenticated Authentication Bypass via SAMLResponse Parameter in miniOrange SAML SSO < 11.0.2, SAML SP Single Sign On – LCVE-2026-77998 · Websites & servers · reported by security@joomla.orgCritical 10
Joomla Extension - miniorange.com - Unauthenticated Authentication Bypass via SAMLResponse Parameter in miniOrange SAML SSO < 11.0.2, SAML SP Single Sign On – Login with ADFS < 6.4, SAML SP Single Sign On – SAML SSO login with Google Apps < 6.4 - This is due to the mo_saml_validate_signature() function performing a loose boolean check on the raw tri-state integer returned by PHP's openssl_verify(), causing an error return value of -1 to be evaluated as truthy and therefore treated as a successful signature verification. This makes it possible for unauthenticated attackers to log in as any existing Joomla user, including administrators, by submitting a crafted SAMLResponse containing an attacker-controlled NameID and a deliberately malformed signature value that triggers an OpenSSL processing error — bypassing verification entirely and resulting in wp_set_auth_cookie() being called for the targeted account.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 25, 2026An improper authentication vulnerability in HiveServer2 SAML bearer-token validation in Apache Hive 4.0.0 through 4.2.0 (and later unreleased branches) on deploCVE-2026-53561 · Websites & servers · Apache Software Foundation · reported by security@apache.orgHigh 7.4
An improper authentication vulnerability in HiveServer2 SAML bearer-token validation in Apache Hive 4.0.0 through 4.2.0 (and later unreleased branches) on deployments using HTTP transport with hive.server2.authentication=SAML allows an unauthenticated network attacker to authenticate as an arbitrary Hive user and obtain an authenticated HiveServer2 session via a forged Authorization: Bearer token sent to the /cliservice HTTP endpoint. Users are recommended to upgrade to 4.2.1 version that includes the fix for this issue. Access / authorization required: No Hive credentials, SAML IdP login, or knowledge of the server signing secret is required. The attacker only needs network reachability to the HiveServer2 HTTP port (typically /cliservice), directly or through a reverse proxy such as Apache Knox that forwards unauthenticated requests to HS2. The instance must have SAML authentication enabled in HTTP mode. Deployments where Knox handles SSO and HiveServer2 uses LDAP/Kerberos (not native SAML mode) are not affected by this specific issue.
- Product
- Apache Hive
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 21, 2026Certificate validation failures in SAML authentication in Apache CloudStack 4.20.3.0 and 4.22.1.0 on all platforms allow a malicious agent to forge a SAML respoCVE-2026-68745 · Websites & servers · Apache Software Foundation · reported by security@apache.orgHigh 8.1
Certificate validation failures in SAML authentication in Apache CloudStack 4.20.3.0 and 4.22.1.0 on all platforms allow a malicious agent to forge a SAML response to the management server. The agent will have to spoof the ip address of the IdP or get an url of its own choosing registered in the management server, after which it can allow logging on with forged signatures. Users are recommended to upgrade to versions 4.20.3.1 or 4.22.1.1 and above, which fix this issue.
- Product
- Apache CloudStack
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 20, 2026Insufficient Verification of Data Authenticity vulnerability in dropbox samly allows an attacker to establish an authenticated session using a SAML response theCVE-2026-53425 · Other software · dropbox · reported by 6b3ad84c-e1a6-4bf7-a703-f496b71e49dbHigh 7.6
Insufficient Verification of Data Authenticity vulnerability in dropbox samly allows an attacker to establish an authenticated session using a SAML response the service provider never requested. Samly.SPHandler.validate_authresp/3 in lib/samly/sp_handler.ex validates a SAML response for the SP-initiated flow by comparing only the RelayState value, the IdP identifier, and the presence of a target URL held in the session. It never compares SubjectConfirmationData/@InResponseTo against the ID of the AuthnRequest the service provider issued, and that request ID is never persisted, so no comparison is possible. SAML 2.0 Core section 4.1.4.3 requires a service provider to reject a response whose InResponseTo does not match a request it made. The underlying esaml library checks status, signature, recipient, audience, and staleness, but likewise never inspects InResponseTo, so nothing else closes the gap. Exploitation requires a validly signed assertion from the trusted IdP, which an attacker can obtain for their own account, and a RelayState matching the victim's session; the assertion signature itself remains intact, so this is not a signature-forgery issue. This issue affects samly: f
- Product
- samly
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 20, 2026Authentication Bypass by Capture-replay vulnerability in dropbox samly allows an attacker to authenticate as the subject of a captured SAML assertion by resubmiCVE-2026-53424 · Other software · dropbox · reported by 6b3ad84c-e1a6-4bf7-a703-f496b71e49dbCritical 9.1
Authentication Bypass by Capture-replay vulnerability in dropbox samly allows an attacker to authenticate as the subject of a captured SAML assertion by resubmitting it. Samly.Helper.decode_idp_auth_resp/3 in lib/samly/helper.ex calls esaml_sp:validate_assertion/2, whose default duplicate detector is a no-op. The /3 arity accepting a DuplicateFun exists in esaml and implements the check, but Samly never calls it and offers no configuration to supply one, so the SAML 2.0 Web Browser SSO Profile requirement that a bearer assertion be used once is unenforced. An attacker holding a valid SAMLResponse obtained from the network, from browser history, or from logs can submit the identical bytes repeatedly until the assertion's NotOnOrAfter passes, each time establishing a session as the assertion's subject. This issue affects samly: from 0.3.0 onward.
- Product
- samly
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 19, 2026The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality.CVE-2026-49289 · Other software · simplesamlphp · reported by GitHubHigh 7.5
The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. In 4.19.2 and 4.20.2, the library permits attacker-controlled XPath transforms while processing XML signatures in specially crafted SAML messages. XPath evaluation can consume uncontrolled processing resources, allowing a remote unauthenticated attacker to deny service to any entity relying on SimpleSAMLphp or directly on the SAML2 library. The mitigation limits the number of transforms, permits only transform algorithms identified by the SAML 2.0 Core specification, and specifically rejects XPath transforms. This issue is fixed in versions 4.19.3 and 4.20.3.
- Product
- saml2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 19, 2026The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality.CVE-2026-49283 · Other software · simplesamlphp · reported by GitHubHigh 8.7
The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1, the HTTPArtifact::receive() flow can treat an unsigned embedded SAML Response as cryptographically valid for the wrong identity provider. SOAPClient::addSSLValidator() attaches a TLS-based validator to the outer SOAP ArtifactResponse, while the embedded Response receives a validator that delegates to the outer message and is later checked against metadata selected from the embedded response issuer rather than necessarily the artifact issuer. SOAPClient::validateSSL() returns normally when the TLS public key does not match the key being validated, and SAML2\Message::validate() treats a validator call that does not throw as successful. In a multi-IdP federation, a malicious or lower-trust IdP can therefore provide an ArtifactResponse containing an unsigned Response that claims a higher-trust victim IdP as issuer and authenticate as arbitrary users with attacker-chosen assertion attributes, NameID, and session data. This issue is fixed in versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1.
- Product
- saml2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 19, 2026SAML Single Sign On: Does not verify the signature of a SAML response before storing the certificate it carriesCVE-2026-19842 · WordPress plugins & themes · reported by WPScanHigh 8.8
The SAML Single Sign On WordPress plugin before 5.4.7 does not verify the signature of a SAML response before storing the certificate it carries, and offers an administrator a one-click control that promotes that stored certificate to the site's trusted signing certificate, allowing unauthenticated attackers to have a certificate of their own trusted and then authenticate as any user, including an administrator.
- Product
- SAML Single Sign On
- Fixed in
- 5.4.7
- What to do
- Update SAML Single Sign On to 5.4.7 or newer.
Aug 13, 2026Unauthenticated Privilege Escalation in SAML SP Single Sign On <= 5.4.3 versions.CVE-2026-61979 · WordPress plugins & themes · reported by PatchstackHigh 8.1
Unauthenticated Privilege Escalation in SAML SP Single Sign On <= 5.4.3 versions.
- Affected
- up to 5.4.3
- What to do
- Affects up to 5.4.3. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Aug 12, 2026A user with access to a valid SAML response may impersonate another user under specific conditions.CVE-2026-68757 · Other software · jfrog · reported by reefs@jfrog.comHigh 7.5
A user with access to a valid SAML response may impersonate another user under specific conditions.
- Product
- artifactory
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.jfrog.comdocs.jfrog.com
Aug 11, 2026A flaw was found in Picketlink's SP signature validation; a SAML response containing zero assertion elements matching the signature check can allow an attacker CVE-2026-15556 · Other software · Red Hat · reported by Red HatHigh 8.1
A flaw was found in Picketlink's SP signature validation; a SAML response containing zero assertion elements matching the signature check can allow an attacker to forge a SAML response and auth as any principal with any roles on the protected application.
- Product
- Red Hat JBoss Enterprise Application Platform 7.4.25
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordaccess.redhat.comaccess.redhat.com
Aug 11, 2026A flaw was found in Picketlink Federation SAML; the unsolcited response handler would accept forged assertions with no verification or validation, permitting anCVE-2026-10579 · Other software · Red Hat · reported by Red HatCritical 9.8
A flaw was found in Picketlink Federation SAML; the unsolcited response handler would accept forged assertions with no verification or validation, permitting an unauthed attacker to authenticate as any principal in any role. This could lead to information disclosure, access to restricted operations, or other flaws.
- Product
- Red Hat JBoss Enterprise Application Platform 7.4.25
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordaccess.redhat.comaccess.redhat.com
Aug 6, 2026A flaw was found in the SAML broker component of Keycloak, an identity and access management solution.CVE-2026-18967 · Other software · Red Hat · reported by Red HatMedium 6.4
A flaw was found in the SAML broker component of Keycloak, an identity and access management solution. When configured as a SAML broker using the IdP-Initiated flow, Keycloak fails to enforce the OneTimeUse condition in SAML assertions. This allows an attacker who captures a valid, unused assertion to replay it multiple times. Successful exploitation could allow an attacker to hijack a user's session and gain unauthorized access to the system as that user.
- Product
- Red Hat Build of Keycloak
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordaccess.redhat.combugzilla.redhat.com
Aug 5, 2026An improper verification of cryptographic signature vulnerability in the SAML authentication module of Progress MarkLogic Server before 11.3.6 and 12.0.3 allowsCVE-2026-7557 · Other software · Progress Software Corporation · reported by security@progress.comCritical 9.1
An improper verification of cryptographic signature vulnerability in the SAML authentication module of Progress MarkLogic Server before 11.3.6 and 12.0.3 allows an unauthenticated remote attacker to bypass authentication and impersonate any user, including administrators. This vulnerability affects deployments with SAML single sign-on enabled.
- Product
- MarkLogic Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcommunity.progress.com
Aug 5, 2026A flaw was found in the SAML broker component of Keycloak, which is used to manage identity federation and user authentication.CVE-2026-16442 · Other software · Red Hat · reported by Red HatHigh 7.4
A flaw was found in the SAML broker component of Keycloak, which is used to manage identity federation and user authentication. The issue occurs because the IdP-initiated Single Sign-On endpoint fails to check if a provider is restricted to account linking only. This allows an attacker with control over a linked upstream identity to bypass login restrictions and gain full access to a local user account.
- Product
- Red Hat build of Keycloak 26.4
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordaccess.redhat.comaccess.redhat.com
Aug 5, 2026A flaw was found in the SAML metadata import functionality of the keycloak-services component, which is the core engine for identity brokering in Red Hat Build CVE-2026-16443 · Other software · Red Hat · reported by Red HatHigh 7.4
A flaw was found in the SAML metadata import functionality of the keycloak-services component, which is the core engine for identity brokering in Red Hat Build of Keycloak. When importing identity provider metadata that lacks specific usage attributes for keys, the system incorrectly disables signature validation for SAML responses even if a signing certificate is provided. This issue allows an unauthenticated attacker to forge a SAML response and gain unauthorized access to a user account by knowing their external identifier.
- Product
- Red Hat build of Keycloak 26.4
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordaccess.redhat.comaccess.redhat.com
Aug 3, 2026Admidio versions before 5.0.11 contain a reflected cross-site scripting vulnerability in the SSO/SAML endpoint that echoes unencoded exception messages to the HCVE-2026-69092 · Other software · Admidio · reported by VulnCheckMedium 6.9
Admidio versions before 5.0.11 contain a reflected cross-site scripting vulnerability in the SSO/SAML endpoint that echoes unencoded exception messages to the HTTP response. Unauthenticated attackers can inject arbitrary JavaScript through SAML Issuer elements or LightSaml library parameters to execute code in users' browsers and hijack sessions.
- Product
- admidio
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Aug 3, 2026Net::SAML2 versions before 0.86 for Perl allow authentication bypass because _verify_encrypted_assertion accepts an EncryptedAssertion whose decrypted content cCVE-2026-18108 · Other software · TIMLEGGE · reported by 9b29abf9-4ab0-4765-b253-1875cd9b441eCritical 9.8
Net::SAML2 versions before 0.86 for Perl allow authentication bypass because _verify_encrypted_assertion accepts an EncryptedAssertion whose decrypted content carries no signature. _verify_encrypted_assertion decrypts the EncryptedAssertion and returns it as verified when it carries no signature, via "return $xml unless $xpath->exists('dsig:Signature', $assert);". The signature check and the trust anchor check that follow run only when a signature is present, so a decrypted assertion with no dsig:Signature element reaches new_from_xml unverified and its NameID and attributes are read into the assertion object. An SP's encryption certificate is published in its SAML metadata so the IdP can encrypt to it, so any party can encrypt an unsigned assertion to that certificate, wrap it in a samlp:Response, and post it to the assertion consumer service. Any caller that configures a decryption key_file, and so accepts EncryptedAssertions, takes identity fields from an assertion that no trust anchor covers, and an unauthenticated party can authenticate as an arbitrary user. Callers with no key_file configured do not decrypt and are unaffected.
- Product
- Net::SAML2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.commetacpan.org
Aug 3, 2026Net::SAML2 versions before 0.86 for Perl allow SAML authentication bypass via XML signature wrapping because new_from_xml reads assertion identity with documentCVE-2026-18092 · Other software · TIMLEGGE · reported by 9b29abf9-4ab0-4765-b253-1875cd9b441eHigh 8.1
Net::SAML2 versions before 0.86 for Perl allow SAML authentication bypass via XML signature wrapping because new_from_xml reads assertion identity with document-wide XPath instead of the signed subtree. new_from_xml reads the NameID, attribute values, SessionIndex, audience and other identity fields with document-wide XPath, such as //saml:Assertion/saml:AttributeStatement/saml:Attribute and //saml:Subject/saml:NameID, which select the first matching element in document order rather than the element covered by the verified signature. handle_response confirms that a signature is present and, when a cacert is configured, that it chains to the CA, but XML::Sig verifies only the element named by the signature's Reference URI, so unsigned sibling assertions in the same document are not covered. An attacker who holds any one IdP-signed assertion can add an unsigned attacker-authored assertion earlier in document order; the signature still verifies and the document-order XPath returns the attacker's NameID and attributes. Any caller that passes an untrusted Response to new_from_xml can accept identity fields from an assertion the IdP never signed, even when a cacert trust anchor is conf
- Product
- Net::SAML2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.commetacpan.org
Aug 3, 2026Net::SAML2 versions before 0.86 for Perl allow SAML authentication bypass by verifying responses against the response-embedded certificate in verify_xml when noCVE-2026-18089 · Other software · TIMLEGGE · reported by 9b29abf9-4ab0-4765-b253-1875cd9b441eHigh 7.5
Net::SAML2 versions before 0.86 for Perl allow SAML authentication bypass by verifying responses against the response-embedded certificate in verify_xml when no trust anchor is configured. verify_xml in Net::SAML2::Role::VerifyXML runs "return if !$anchors && !$cacert;" as soon as the XML::Sig check succeeds, and that check uses the X.509 certificate taken from the response's own dsig:KeyInfo/dsig:X509Certificate element, so an unanchored response is checked only against the key it carries. Binding::POST declares cacert as an optional Maybe[Str] with no default, so a POST binding built without one takes that path, and _verify_encrypted_assertion returns early the same way with "return $xml unless $cacert;". Any caller that constructs Binding::POST or calls Assertion->new_from_xml without a cacert, cert_text, or anchors argument accepts a response signed by an attacker generated key whose self-signed certificate is embedded in that response, authenticating an arbitrary assertion.
- Product
- Net::SAML2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordmetacpan.orgmetacpan.org
Jul 31, 2026A flaw was found in the SAML protocol implementation of Keycloak, an open-source identity and access management solution.CVE-2026-18217 · Other software · Red Hat · reported by Red HatLow 3.4
A flaw was found in the SAML protocol implementation of Keycloak, an open-source identity and access management solution. The issue occurs when Keycloak handles SAML authentication requests using the HTTP-Redirect binding. If a client is configured with a wildcard redirect URL, an attacker can craft a request that includes malicious parameters. When a user authenticates, Keycloak appends its legitimate response to the attacker's parameters. This can cause some service providers to process the attacker's data instead of the real login information, potentially leading to a user being logged into the wrong account.
- Product
- Red Hat Build of Keycloak
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordaccess.redhat.combugzilla.redhat.com
Jul 30, 2026SolarWinds Web Help Desk is found to be affected by a SAML authentication bypass vulnerability.CVE-2026-28323 · Other software · SolarWinds · reported by psirt@solarwinds.comCritical 9.8
SolarWinds Web Help Desk is found to be affected by a SAML authentication bypass vulnerability. This requires the SAML 2.0 authentication method to be enabled.
- Product
- Web Help Desk
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocumentation.solarwinds.comdocumentation.solarwinds.com
Jul 30, 2026Rocket.Chat's SAML SSO before versions 8.7.0, 8.6.1, 8.5.2, 8.4.5, 8.3.7, 8.2.7, 8.1.7, 8.0.8, and 7.10.14 verified XML signatures but did not bind the validateCVE-2026-58066 · Other software · Rocket.Chat · reported by support@hackerone.comCritical 9.8
Rocket.Chat's SAML SSO before versions 8.7.0, 8.6.1, 8.5.2, 8.4.5, 8.3.7, 8.2.7, 8.1.7, 8.0.8, and 7.10.14 verified XML signatures but did not bind the validated signature to samlp:Response / saml:Assertion. An attacker could submit a wrapped document carrying forged identity attributes alongside any valid signature made by the trusted IdP certificate, and log in as an arbitrary user.
- Product
- Rocket.Chat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comhackerone.com
Jul 28, 2026Mattermost versions 11.8.x <= 11.8.0, 11.7.x <= 11.7.3, 11.6.x <= 11.6.5, 10.11.x <= 10.11.20 fail to verify file deletion path which allows an admin with SAML CVE-2026-7521 · Other software · Mattermost · reported by responsibledisclosure@mattermost.comMedium 5.5
Mattermost versions 11.8.x <= 11.8.0, 11.7.x <= 11.7.3, 11.6.x <= 11.6.5, 10.11.x <= 10.11.20 fail to verify file deletion path which allows an admin with SAML system-console write permissions to delete arbitrary files outside the config directory from the server via the remove file endpoint.. Mattermost Advisory ID: MMSA-2026-00666
- Product
- Mattermost
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 23, 2026SAML Single Sign On – SSO Login: Authentication BypassCVE-2026-15981 · WordPress plugins & themes · reported by WordfenceCritical 9.8
The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 5.4.4. This is due to the mo_saml_validate_signature() function performing a loose boolean check on the raw tri-state integer returned by PHP's openssl_verify(), causing an error return value of -1 to be evaluated as truthy and therefore treated as a successful signature verification. This makes it possible for unauthenticated attackers to log in as any existing WordPress user, including administrators, by submitting a crafted SAMLResponse containing an attacker-controlled NameID and a deliberately malformed signature value that triggers an OpenSSL processing error — bypassing verification entirely and resulting in wp_set_auth_cookie() being called for the targeted account.
- Product
- SAML Single Sign On – SSO Login
- Affected
- up to 5.4.4
- What to do
- Affects up to 5.4.4. Update SAML Single Sign On – SSO Login to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Jul 23, 2026Logto omits validation of the SAML <Conditions> element, enabling attackers to strip time and audience restrictions and replay assertions indefinitely.CVE-2026-15615 · Other software · Logto · reported by cret@cert.orgHigh 7.5
Logto omits validation of the SAML <Conditions> element, enabling attackers to strip time and audience restrictions and replay assertions indefinitely.
- Product
- Logto
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 23, 2026Logto silently fails to delete IdP-initiated SAML sessions, enabling session replay and reuse within the session’s validity window.CVE-2026-15614 · Other software · Logto · reported by cret@cert.orgHigh 7.5
Logto silently fails to delete IdP-initiated SAML sessions, enabling session replay and reuse within the session’s validity window.
- Product
- Logto
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 17, 2026SimpleSAMLphp versions before 1.18.6 contain an information disclosure vulnerability.CVE-2026-49284 · Other software · simplesamlphp · reported by GitHubHigh 7.1
SimpleSAMLphp versions before 1.18.6 contain an information disclosure vulnerability. Prior to 2.4.7 and 2.5.2, SimpleSAMLphp's SAML SP ACS path does not enforce the IdP selected for an SP-initiated login when unsigned Response/InResponseTo is combined with a signed assertion lacking SubjectConfirmationData/InResponseTo, allowing a response issued by one trusted IdP to be bound to SP state created for another IdP and bypass flows that route users to a specific IdP, including deployments that set enable_unsolicited to false. This issue is fixed in versions 2.4.7 and 2.5.2.
- Product
- simplesamlphp
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 16, 2026SAML Single Sign On – SSO Login: Authentication BypassCVE-2026-15013 · WordPress plugins & themes · reported by WordfenceCritical 9.8
The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass via SAML Signature Algorithm Confusion in all versions up to, and including, 5.4.3. The vulnerability exists because `Mo_SAML_Utilities::mo_saml_cast_key()` reads the `SignatureMethod` Algorithm attribute directly from the attacker-controlled `SAMLResponse` parameter rather than enforcing the locally configured algorithm, causing the plugin to recast the IdP's RSA public key as an HMAC-SHA1 shared secret and validate the forged signature against it. This makes it possible for unauthenticated attackers to forge a SAML assertion targeting any WordPress account — including administrators — obtain valid WordPress authentication cookies, and achieve full administrator-level account takeover.
- Product
- SAML Single Sign On – SSO Login
- Affected
- up to 5.4.3
- What to do
- Affects up to 5.4.3. Update SAML Single Sign On – SSO Login to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Jul 9, 2026An Open Redirect vulnerability was discovered in the SAML Single Sign-On functionality due to insufficient validation of a user-controlled redirection parameterCVE-2026-31982 · Other software · Nozomi Networks · reported by prodsec@nozominetworks.comMedium 5.3
An Open Redirect vulnerability was discovered in the SAML Single Sign-On functionality due to insufficient validation of a user-controlled redirection parameter. An unauthenticated attacker can craft a request to the SAML sign-in endpoint and poison the cached SAML redirection for other users who subsequently initiate SAML Single Sign-On, enabling phishing and credential-theft attacks, as well as disrupting SAML authentication for all affected users.
- Product
- Guardian
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurity.nozominetworks.comcert-portal.siemens.com
Jun 30, 2026Insufficient input validation in NetScaler ADC and NetScaler Gateway leading to memory overread if NetScaler ADC or NetScaler Gateway is configured as a SAML IDCVE-2026-8451 · Other software · NetScaler · reported by 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5High 8.8
Insufficient input validation in NetScaler ADC and NetScaler Gateway leading to memory overread if NetScaler ADC or NetScaler Gateway is configured as a SAML IDP
- Product
- ADC
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 30, 2026A SAML authentication replay vulnerability in Rancher's Assertion Consumer Service (ACS) handler did not enforce one-time use of SAML assertion, potentially aCVE-2026-44946 · Other software · SUSE · reported by meissner@suse.deCritical 9.5
A SAML authentication replay vulnerability in Rancher's Assertion Consumer Service (ACS) handler did not enforce one-time use of SAML assertion, potentially allowing person in the middle attacks against Rancher, affecting Rancher 2.14.0 before 2.14.3,
- Product
- Rancher
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 18, 2026Relyra is a strict-by-default SAML 2.0 Service Provider library for Elixir and Phoenix.CVE-2026-49454 · Other software · szTheory · reported by GitHubCritical 9.1
Relyra is a strict-by-default SAML 2.0 Service Provider library for Elixir and Phoenix. Versions 1.0.0 and 1.1.0 accept forged SAML signatures because SignatureValue was not cryptographically verified before the library returned a successful authentication result. The XMLDSig trust boundary was incomplete as :public_key.verify over the exclusive-C14N canonicalized SignedInfo was not performed against the configured IdP certificate's public key, DigestValue was not recomputed over the canonicalized referenced element, and canonicalize/2 remained an unused passthrough in the signature-verification path. The result was a structure-only acceptance path where document shape and trust-source rejection could succeed without proving the signature bytes. A forged SignatureValue carrying an attacker-controlled NameID could be accepted as {:ok}. This issue has been fixed in version 1.2.0.
- Product
- relyra
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 9, 2026SimpleSAMLphp-casserver is a CAS 1.0 and 2.0 compliant CAS server in the form of a SimpleSAMLphp module.CVE-2026-46491 · Other software · simplesamlphp · reported by GitHubHigh 8.6
SimpleSAMLphp-casserver is a CAS 1.0 and 2.0 compliant CAS server in the form of a SimpleSAMLphp module. Prior to version 7.0.3, simplesamlphp-module-casserver builds file paths for the file-based CAS ticket store by directly concatenating the configured ticket directory with an attacker-controlled ticket identifier. Public CAS validation/proxy endpoints pass attacker-controlled ticket / pgt query parameters into this store. In deployments using FileSystemTicketStore, a remote attacker can use path traversal sequences such as ../target.serialized to make the CAS server read and unserialize files outside the ticket directory. In the CAS 1.0 validation flow, the same attacker-selected path is also passed to deleteTicket() immediately after getTicket() returns, which can delete the target file when it is readable by the PHP process, deletable under the PHP process filesystem permissions, and unserializes to a value compatible with the ?array return type. This issue has been patched in version 7.0.3.
- Product
- simplesamlphp-module-casserver
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 9, 2026Since Spring Security SAML decrypts SAML Responses as well as elements of SAML LogoutRequests and LogoutResponses without requiring a valid signature, attackersCVE-2026-41694 · Other software · Spring · reported by security@vmware.comLow 3.7
Since Spring Security SAML decrypts SAML Responses as well as elements of SAML LogoutRequests and LogoutResponses without requiring a valid signature, attackers may be able to craft these SAML payloads and use the Service Provider as a decryption oracle. Affected versions: Spring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5.
- Product
- Spring Security
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 9, 2026An attacker with write permissions to the database table managed by JdbcAssertingPartyMetadataRepository (saml2_asserting_party_metadata) may be able to store mCVE-2026-40993 · Other software · Spring · reported by security@vmware.comHigh 7.3
An attacker with write permissions to the database table managed by JdbcAssertingPartyMetadataRepository (saml2_asserting_party_metadata) may be able to store malicious serialized payloads in the columns containing the collection of verification or encryption credentials (verification_credentials and encryption_credentials, respectively). Affected versions: Spring Security 7.0.0 through 7.0.5.
- Product
- Spring Security
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 9, 2026An application using spring-security-saml2-service-provider and the REDIRECT binding for SAML 2.0 Login or Logout may be vulnerable to a denial of service by waCVE-2026-40988 · Other software · Spring · reported by security@vmware.comHigh 7.5
An application using spring-security-saml2-service-provider and the REDIRECT binding for SAML 2.0 Login or Logout may be vulnerable to a denial of service by way of an unbounded writer that inflates the compressed SAML payload into memory. Affected versions: Spring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5.
- Product
- Spring Security
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 8, 2026samlify is a Node.js library for SAML single sign-on.CVE-2026-46490 · Other software · tngan · reported by GitHubHigh 8.7
samlify is a Node.js library for SAML single sign-on. Prior to version 2.13.0, samlify’s template substitution only escapes attribute contexts. Values inserted into element text (e.g., <saml:AttributeValue>) are not escaped. A normal user can inject XML markup into an attribute value (e.g., email, name) and add new <saml:Attribute> elements inside the signed assertion. The IdP then signs the tampered assertion and the SP accepts the injected attributes as trusted. This allows privilege escalation when attributes are used for authorization (roles/groups). This issue has been patched in version 2.13.0.
- Product
- samlify
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 1, 2026IBM WebSphere Application Server 9.0, and 8.5 is affected by an improper validation of user-supplied data during deserialization using the SAML Web Single Sign-CVE-2026-9330 · Other software · IBM · reported by psirt@us.ibm.comHigh 8.5
IBM WebSphere Application Server 9.0, and 8.5 is affected by an improper validation of user-supplied data during deserialization using the SAML Web Single Sign-On component. This could result in remote code execution via a crafted HTTP request when combined with a suitable gadget chain.
- Product
- WebSphere Application Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 29, 2026In JetBrains TeamCity before 2026.1 stored XSS on the SAML login page was possibleCVE-2026-49381 · Other software · JetBrains · reported by cve@jetbrains.comLow 3.4
In JetBrains TeamCity before 2026.1 stored XSS on the SAML login page was possible
- Product
- TeamCity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 29, 2026In JetBrains TeamCity before 2026.1 open redirect in the SAML plugin was possibleCVE-2026-49380 · Other software · JetBrains · reported by cve@jetbrains.comLow 3.1
In JetBrains TeamCity before 2026.1 open redirect in the SAML plugin was possible
- Product
- TeamCity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 29, 2026In JetBrains TeamCity before 2026.1 insufficient username validation in the SAML pluginCVE-2026-49376 · Other software · JetBrains · reported by cve@jetbrains.comMedium 6.5
In JetBrains TeamCity before 2026.1 insufficient username validation in the SAML plugin
- Product
- TeamCity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 28, 2026Improper Check for Unusual or Exceptional Conditions vulnerability in Drupal SAML SSO - Service Provider allows Privilege Escalation.CVE-2026-5343 · Websites & servers · reported by mlhess@drupal.orgHigh 7.4
Improper Check for Unusual or Exceptional Conditions vulnerability in Drupal SAML SSO - Service Provider allows Privilege Escalation. This issue affects SAML SSO - Service Provider: from 0.0.0 before 3.1.4.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 28, 2026In Casdoor versions 2.362.0 and earlier, the SAML callback handler in controllers/auth.go accepts any well-formed SAMLResponse sent to /api/acs without verifyinCVE-2026-9098 · Other software · Casdoor · reported by cret@cert.orgCritical 9.1
In Casdoor versions 2.362.0 and earlier, the SAML callback handler in controllers/auth.go accepts any well-formed SAMLResponse sent to /api/acs without verifying that it corresponds to an AuthnRequest previously issued by Casdoor. Additionally, if an administrator disables or deletes an IdP (Identity Provider) after a SAML flow has started, the handler still processes the response using the provider snapshot loaded at the start of the request. As a result, an attacker controlling a registered upstream IdP can send unsolicited SAML responses, or replay a legitimately captured response in a different session or after the original flow has ended. In both cases, Casdoor accepts the response and issues a session, enabling persistent unauthorized access.
- Product
- Casdoor
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 28, 2026Casdoor versions 2.362.0 and earlier do not enforce SAML assertion time bounds.CVE-2026-9096 · Other software · Casdoor · reported by cret@cert.orgHigh 7.5
Casdoor versions 2.362.0 and earlier do not enforce SAML assertion time bounds. The gosaml2 library reports all time-validation results, including NotOnOrAfter and NotBefore, in the assertionInfo.WarningInfo field. However, ParseSamlResponse() never reads this field, meaning that time bounds are computed by the library but silently discarded before the user session is issued.
- Product
- Casdoor
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 28, 2026Casdoor versions 2.362.0 and earlier map SAML assertions to user sessions without replay protection.CVE-2026-9095 · Other software · Casdoor · reported by cret@cert.orgHigh 8.1
Casdoor versions 2.362.0 and earlier map SAML assertions to user sessions without replay protection. The ParseSamlResponse() function in object/saml_sp.go calls sp.RetrieveAssertionInfo() and immediately maps the result to a user session. There is no assertion ID cache, OneTimeUse condition enforcement, or replay detection anywhere in the SAML SP code path. As a result, an attacker can replay a previously captured SAML assertion to obtain an authenticated session for the assertion’s subject, including administrator accounts, without needing the user’s password or MFA credentials.
- Product
- Casdoor
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 28, 2026In Casdoor versions 2.362.0 and earlier, the SAML service provider implementation does not validate the AudienceRestriction element in SAML assertions.CVE-2026-9093 · Other software · Casdoor · reported by cret@cert.orgCritical 9.8
In Casdoor versions 2.362.0 and earlier, the SAML service provider implementation does not validate the AudienceRestriction element in SAML assertions. The buildSp function in object/saml_sp.go never sets AudienceURI on the gosaml2 SAMLServiceProvider struct and never inspects WarningInfo.NotInAudience. This allows assertions issued for other service providers to be accepted by Casdoor.
- Product
- Casdoor
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 18, 2026SimpleSAMLphp-casserver is a CAS 1.0 and 2.0 compliant CAS server in the form of a SimpleSAMLphp module.CVE-2025-65954 · Other software · simplesamlphp · reported by GitHubMedium 6.1
SimpleSAMLphp-casserver is a CAS 1.0 and 2.0 compliant CAS server in the form of a SimpleSAMLphp module. In versions below 6.3.1 and 7.0.0, the logout endpoint accepts a url query parameter to redirect to. casserver treats that url as trusted, and either (depending on configuration) redirects the browser there, or shows a "you've been logged out" page with a link to continue to that url. Impacted configs include 'enable_logout' => true, and 'skip_logout_page' -> true. This issue has been resolved in versions 6.3.1 and 7.0.0.
- Product
- simplesamlphp-module-casserver
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 12, 2026Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira & Confluence allows an unauthorized attacker to elevate privileges over a CVE-2026-41103 · Websites & servers · Microsoft · reported by secure@microsoft.comCritical 9.1
Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira & Confluence allows an unauthorized attacker to elevate privileges over a network.
- Product
- Microsoft Confluence SAML SSO plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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