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.
10 results
Dec 9, 2025The ruby-saml library implements the client side of an SAML authorization.CVE-2025-66568 · Other software · SAML-Toolkits · reported by GitHubCritical 9.3
The ruby-saml library implements the client side of an SAML authorization. Versions up to and including 1.12.4, are vulnerable to authentication bypass through the libxml2 canonicalization process used by Nokogiri for document transformation, which allows an attacker to execute a Signature Wrapping attack. When libxml2’s canonicalization is invoked on an invalid XML input, it may return an empty string rather than a canonicalized node. ruby-saml then proceeds to compute the DigestValue over this empty string, treating it as if canonicalization succeeded. This issue is fixed in version 1.18.0.
- Product
- ruby-saml
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 9, 2025The ruby-saml library is for implementing the client side of a SAML authorization.CVE-2025-66567 · Other software · SAML-Toolkits · reported by GitHubCritical 9.3
The ruby-saml library is for implementing the client side of a SAML authorization. ruby-saml versions up to and including 1.12.4 contain an authentication bypass vulnerability due to an incomplete fix for CVE-2025-25292. ReXML and Nokogiri parse XML differently, generating entirely different document structures from the same input. This allows an attacker to execute a Signature Wrapping attack. This issue is fixed in version 1.18.0.
- Product
- ruby-saml
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 30, 2025The Ruby SAML library is for implementing the client side of a SAML authorization.CVE-2025-54572 · Other software · SAML-Toolkits · reported by GitHubMedium 6.9
The Ruby SAML library is for implementing the client side of a SAML authorization. In versions 1.18.0 and below, a denial-of-service vulnerability exists in ruby-saml even with the message_max_bytesize setting configured. The vulnerability occurs because the SAML response is validated for Base64 format prior to checking the message size, leading to potential resource exhaustion. This is fixed in version 1.18.1.
- Product
- ruby-saml
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 12, 2025ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby.CVE-2025-25293 · Other software · SAML-Toolkits · reported by GitHubHigh 7.7
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. Prior to versions 1.12.4 and 1.18.0, ruby-saml is susceptible to remote Denial of Service (DoS) with compressed SAML responses. ruby-saml uses zlib to decompress SAML responses in case they're compressed. It is possible to bypass the message size check with a compressed assertion since the message size is checked before inflation and not after. This issue may lead to remote Denial of Service (DoS). Versions 1.12.4 and 1.18.0 fix the issue.
- Product
- ruby-saml
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordabout.gitlab.comgithub.blog
Mar 12, 2025ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby.CVE-2025-25292 · Other software · SAML-Toolkits · reported by GitHubCritical 9.3
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. An authentication bypass vulnerability was found in ruby-saml prior to versions 1.12.4 and 1.18.0 due to a parser differential. ReXML and Nokogiri parse XML differently, the parsers can generate entirely different document structures from the same XML input. That allows an attacker to be able to execute a Signature Wrapping attack. This issue may lead to authentication bypass. Versions 1.12.4 and 1.18.0 contain a patch for the issue.
- Product
- ruby-saml
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordabout.gitlab.comgithub.blog
Mar 12, 2025ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby.CVE-2025-25291 · Other software · SAML-Toolkits · reported by GitHubCritical 9.3
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. An authentication bypass vulnerability was found in ruby-saml prior to versions 1.12.4 and 1.18.0 due to a parser differential. ReXML and Nokogiri parse XML differently; the parsers can generate entirely different document structures from the same XML input. That allows an attacker to be able to execute a Signature Wrapping attack. This issue may lead to authentication bypass. Versions 1.12.4 and 1.18.0 fix the issue.
- Product
- ruby-saml
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordabout.gitlab.comgithub.blog
Sep 10, 2024The Ruby SAML library is for implementing the client side of a SAML authorization.CVE-2024-45409 · Other software · SAML-Toolkits · reported by GitHubCritical 10
The Ruby SAML library is for implementing the client side of a SAML authorization. Ruby-SAML in <= 12.2 and 1.13.0 <= 1.16.0 does not properly verify the signature of the SAML Response. An unauthenticated attacker with access to any signed saml document (by the IdP) can thus forge a SAML Response/Assertion with arbitrary contents. This would allow the attacker to log in as arbitrary user within the vulnerable system. This vulnerability is fixed in 1.17.0 and 1.12.3.
- Product
- ruby-saml
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 27, 2023xml_security.rb in the ruby-saml gem before 1.0.0 for Ruby allows XPath injection and code execution because prepared statements are not used.CVE-2015-20108 · Other software · Onelogin · reported by MITRECritical 9.8
xml_security.rb in the ruby-saml gem before 1.0.0 for Ruby allows XPath injection and code execution because prepared statements are not used.
- Product
- Ruby-saml
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 17, 2019OneLogin Ruby-SAML 1.6.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be abCVE-2017-11428 · Other software · OneLogin · reported by security@duo.comHigh 7.7
OneLogin Ruby-SAML 1.6.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.
- Product
- Ruby-SAML
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 23, 2017Ruby-saml before 1.3.0 allows attackers to perform XML signature wrapping attacks via unspecified vectors.CVE-2016-5697 · Other software · Onelogin · reported by MITREHigh 7.5
Ruby-saml before 1.3.0 allows attackers to perform XML signature wrapping attacks via unspecified vectors.
- Product
- Ruby-saml
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordopenwall.comopenwall.com
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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