Tomcat vulnerabilitiesAnd the versions its exploited flaws hit.
Tomcat is made by Apache. We track 233 published vulnerabilities listed under that exact name, across 656 versions. 6 of them are on the list of flaws known to be exploited, the newest added on 1 April 2025. Apache lists newer releases under their own names, such as Tomcat Jk Connector, so check those pages too.
The most recent Tomcat flaw added to the known-exploited list is CVE-2025-24813, on 1 April 2025. We keep watching the known-exploited list.
Is Tomcat listed under other names? Yes.
Apache also lists Tomcat under more specific names, such as Tomcat Jk Connector and Tomcat Native. Flaws listed only under those names are counted on their own pages, not here. If you run one of these, open its page for its own exploited flaws.
Which versions of Tomcat do the exploited flaws hit?
Each exploited flaw lists the versions it affects, usually as ranges. "before 9.0.99" means every version up to, but not including, 9.0.99. Find your version, then patch.
- CVE-2025-24813Exploited list, 1 Apr 2025
Apache Tomcat Path Equivalence Vulnerability
before 9.0.9910.1.0-milestone110.1.0-milestone210.1.0-milestone310.1.0-milestone410.1.0-milestone510.1.0-milestone610.1.0-milestone7 - CVE-2023-44487Exploited list, 10 Oct 2023
HTTP/2 Rapid Reset Attack Vulnerability
8.5.0 to 8.5.939.0.0 to 9.0.8010.1.0 to 10.1.1311.0.0-milestone111.0.0-milestone211.0.0-milestone311.0.0-milestone411.0.0-milestone5 - CVE-2016-8735Exploited list, 12 May 2023
Apache Tomcat Remote Code Execution Vulnerability
before 6.0.487.0.0 to before 7.0.738.0 to before 8.0.398.5.0 to before 8.5.79.0.09.0.0-milestone19.0.0-milestone29.0.0-milestone3 - CVE-2017-12615Exploited list, 25 Mar 2022
Apache Tomcat on Windows Remote Code Execution Vulnerability
7.0.0 to 7.0.79 - CVE-2017-12617Exploited list, 25 Mar 2022
Apache Tomcat Remote Code Execution Vulnerability
7.0.0 to before 7.0.828.0 to before 8.0.478.5.0 to before 8.5.239.0.0 to before 9.0.1 - CVE-2020-1938Exploited list, 3 Mar 2022
Apache Tomcat Improper Privilege Management Vulnerability
7.0.0 to before 7.0.1008.5.0 to before 8.5.519.0.0 to before 9.0.31
Which Tomcat vulnerabilities are being exploited?
6 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 9.8Apache Tomcat Path Equivalence Vulnerability
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.
- 7.5HTTP/2 Rapid Reset Attack Vulnerability
HTTP/2 contains a rapid reset vulnerability that allows for a distributed denial-of-service attack (DDoS).
- 9.8Apache Tomcat Remote Code Execution Vulnerability
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.
- 8.1Apache Tomcat on Windows Remote Code Execution Vulnerability
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.
- 8.1Apache Tomcat Remote Code Execution Vulnerability
When running Apache Tomcat, it is possible to upload a JSP file to the server via a specially crafted request.
- 9.8Apache Tomcat Improper Privilege Management Vulnerability
Apache Tomcat treats Apache JServ Protocol (AJP) connections as having higher trust than, for example, a similar HTTP connection.
Which Tomcat flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- >99%
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
- >99%
When running Apache Tomcat versions 9.0.0.M1 to 9.0.0, 8.5.0 to 8.5.22, 8.0.0.RC1 to 8.0.46 and 7.0.0 to 7.0.81 with HTTP PUTs enabled (e.g.
- >99%
Path Equivalence: 'file.Name' (Internal Dot) leading to Remote Code Execution and/or Information disclosure and/or malicious content added to uploaded files via write enabled Default Servlet in Apache Tomcat.
- >99%CVE-2008-2938Medium
Directory traversal vulnerability in Apache Tomcat 4.1.0 through 4.1.37, 5.5.0 through 5.5.26, and 6.0.0 through 6.0.16, when allowLinking and UTF-8 are enabled, allows remote attackers to read arbitrary files via...
- >99%
When running Apache Tomcat 7.0.0 to 7.0.79 on Windows with HTTP PUTs enabled (e.g.
- >99%
When using the Apache JServ Protocol (AJP), care must be taken when trusting incoming connections to Apache Tomcat.
- 98%CVE-2018-11784Medium
When the default servlet in Apache Tomcat versions 9.0.0.M1 to 9.0.11, 8.5.0 to 8.5.33 and 7.0.23 to 7.0.90 returned a redirect to a directory (e.g.
- 94%CVE-2009-0580Medium
Apache Tomcat 4.1.0 through 4.1.39, 5.5.0 through 5.5.27, and 6.0.0 through 6.0.18, when FORM authentication is used, allows remote attackers to enumerate valid usernames via requests to /j_security_check with...
- 91%CVE-2007-0450Medium
Directory traversal vulnerability in Apache HTTP Server and Tomcat 5.x before 5.5.22 and 6.x before 6.0.10, when using certain proxy modules (mod_proxy, mod_rewrite, mod_jk), allows remote attackers to read arbitrary...
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1 flaw being exploited affects software Acme tracks
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.
- Matched to
- Tomcat on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 233 published vulnerabilities listed under the name Tomcat, across 656 versions. The most recent Tomcat flaw added to the known-exploited list is CVE-2025-24813, on 1 April 2025.
6 are on the list of flaws known to be exploited. The most recently added are CVE-2025-24813, CVE-2023-44487 and CVE-2016-8735.
Apache also lists Tomcat under more specific names, such as Tomcat Jk Connector and Tomcat Native. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list.
Each flaw names its own versions, usually as ranges. The newest, CVE-2025-24813, affects before 9.0.99, 10.1.0-milestone1, 10.1.0-milestone2, 10.1.0-milestone3 and more. The versions for every exploited flaw are listed on this page.
Create a EdgeProtect account and track Tomcat. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.