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.
6 results
Aug 4, 2026Apache Tomcat Missing Encryption of Sensitive Data VulnerabilityCVE-2026-34486 · Websites & servers · Apache · reported by security@apache.orgExploitedHigh 7.5
Apache Tomcat contains a missing encryption of sensitive data vulnerability that allows the bypass of the EncryptInterceptor. This vulnerability can be chained with CVE‑2025‑24813.
- Product
- Tomcat
- On CISA’s list since
- Aug 4, 2026 (federal fix deadline Aug 7, 2026)
- What to do
- Attackers are using this now. Install Apache’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA cataloglists.apache.orgvicarius.io
Apr 1, 2025Apache Tomcat Path Equivalence VulnerabilityCVE-2025-24813 · Websites & servers · Apache · reported by security@apache.orgExploitedCritical 9.8
Apache Tomcat contains a path equivalence vulnerability that allows a remote attacker to execute code, disclose information, or inject malicious content via a partial PUT request. This vulnerability can be chained with CVE‑2026‑34486.
- Product
- Tomcat
- On CISA’s list since
- Apr 1, 2025 (federal fix deadline Apr 22, 2025)
- What to do
- Attackers are using this now. Install Apache’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA cataloglists.apache.orgopenwall.com
May 12, 2023Apache Tomcat Remote Code Execution VulnerabilityCVE-2016-8735 · Websites & servers · Apache · reported by security@apache.orgExploitedCritical 9.8
Apache Tomcat contains an unspecified vulnerability that allows for remote code execution if JmxRemoteLifecycleListener is used and an attacker can reach Java Management Extension (JMX) ports. This CVE exists because this listener wasn't updated for consistency with the Oracle patched issues for CVE-2016-3427 which affected credential types.
- Product
- Tomcat
- On CISA’s list since
- May 12, 2023 (federal fix deadline Jun 2, 2023)
- What to do
- Attackers are using this now. Install Apache’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogrhn.redhat.comseclists.org
Mar 25, 2022Apache Tomcat Remote Code Execution VulnerabilityCVE-2017-12617 · Websites & servers · Apache · reported by security@apache.orgExploitedHigh 8.1
When running Apache Tomcat, it is possible to upload a JSP file to the server via a specially crafted request. This JSP could then be requested and any code it contained would be executed by the server.
- Product
- Tomcat
- On CISA’s list since
- Mar 25, 2022 (federal fix deadline Apr 15, 2022)
- What to do
- Attackers are using this now. Install Apache’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogoracle.comoracle.com
Mar 25, 2022Apache Tomcat on Windows Remote Code Execution VulnerabilityCVE-2017-12615 · Websites & servers · Apache · reported by security@apache.orgExploitedRansomwareHigh 8.1
When running Apache Tomcat on Windows with HTTP PUTs enabled, it is possible to upload a JSP file to the server via a specially crafted request. This JSP could then be requested and any code it contained would be executed by the server.
- Product
- Tomcat
- On CISA’s list since
- Mar 25, 2022 (federal fix deadline Apr 15, 2022)
- What to do
- Attackers are using this now. Install Apache’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogbreaktoprotect.blogspot.comsecurityfocus.com
Mar 3, 2022Apache Tomcat Improper Privilege Management VulnerabilityCVE-2020-1938 · Websites & servers · Apache · reported by security@apache.orgExploitedCritical 9.8
Apache Tomcat treats Apache JServ Protocol (AJP) connections as having higher trust than, for example, a similar HTTP connection. If such connections are available to an attacker, they can be exploited.
- Product
- Tomcat
- On CISA’s list since
- Mar 3, 2022 (federal fix deadline Mar 17, 2022)
- What to do
- Attackers are using this now. Install Apache’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA cataloglists.opensuse.orglists.opensuse.org
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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