Details

Improper Resource Shutdown or Release vulnerability in Apache Tomcat made Tomcat vulnerable to the made you reset attack.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.9, from 10.1.0-M1 through 10.1.43 and from 9.0.0.M1 through 9.0.107. Older, EOL versions may also be affected.

Users are recommended to upgrade to one of versions 11.0.10, 10.1.44 or 9.0.108 which fix the issue.

Severity

• CVSS Score: 7.5 / 10 (High)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-48989
• https://lists.apache.org/thread/9ydfg0xr0tchmglcprhxgwhj0hfwxlyf
• https://github.com/apache/tomcat/commit/73c04a10395774bda71a0b37802cf983662ce255
• https://github.com/apache/tomcat/commit/f362c8eb3b8ec5b7f312f7f5610731c0fb299a06
• https://github.com/apache/tomcat/commit/f36b8a4eea4ce8a0bc035079e1d259d29f5eb7bf
• https://tomcat.apache.org/security-10.html
• https://tomcat.apache.org/security-11.html
• https://tomcat.apache.org/security-9.html
• https://www.kb.cert.org/vuls/id/767506
• http://www.openwall.com/lists/oss-security/2025/08/13/2
• https://github.com/advisories/GHSA-gqp3-2cvr-x8m3

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

The fix for bug 60013 introduced a regression where the rewritten URL was normalized before it was decoded. This introduced the possibility that, for rewrite rules that rewrite query parameters to the URL, an attacker could manipulate the request URI to bypass security constraints including the protection for /WEB-INF/ and /META-INF/. If PUT requests were also enabled then malicious files could be uploaded leading to remote code execution. PUT requests are normally limited to trusted users and it is considered unlikely that PUT requests would be enabled in conjunction with a rewrite that manipulated the URI.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.10, from 10.1.0-M1 through 10.1.44, from 9.0.0.M11 through 9.0.108.

The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.6 though 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.11 or later, 10.1.45 or later or 9.0.109 or later, which fix the issue.

Severity

• CVSS Score: 7.7 / 10 (High)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-55752
• https://lists.apache.org/thread/n05kjcwyj1s45ovs8ll1qrrojhfb1tog
• https://github.com/apache/tomcat/commit/130d36d8492ef9e4eb22952c17c92423cb35fd06
• https://github.com/apache/tomcat/commit/b5042622b8b78340ae65403c55dcb9c7416924df
• https://github.com/apache/tomcat/commit/fec06c610ed7466b401e29cc567a58aee5ed826a
• https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.45
• https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.11
• https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.109
• http://www.openwall.com/lists/oss-security/2025/10/27/4
• https://www.vicarius.io/vsociety/posts/cve-2025-55752-detect-apache-tomcat-vulnerability
• https://www.vicarius.io/vsociety/posts/cve-2025-55752-mitigate-apache-tomcat-vulnerability
• https://github.com/advisories/GHSA-wmwf-9ccg-fff5

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

Tomcat did not escape ANSI escape sequences in log messages. If Tomcat was running in a console on a Windows operating system, and the console supported ANSI escape sequences, it was possible for an attacker to use a specially crafted URL to inject ANSI escape sequences to manipulate the console and the clipboard and attempt to trick an administrator into running an attacker controlled command. While no attack vector was found, it may have been possible to mount this attack on other operating systems.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.10, from 10.1.0-M1 through 10.1.44, from 9.0.40 through 9.0.108.

The following versions were EOL at the time the CVE was created but are
known to be affected: 8.5.60 though 8.5.100. Other, older, EOL versions may also be affected.
Users are recommended to upgrade to version 11.0.11 or later, 10.1.45 or later or 9.0.109 or later, which fix the issue.

Severity

• CVSS Score: 2.1 / 10 (Low)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-55754
• https://lists.apache.org/thread/j7w54hqbkfcn0xb9xy0wnx8w5nymcbqd
• https://github.com/apache/tomcat/commit/138d7f5cfaae683078948303333c080e6faa75d2
• https://github.com/apache/tomcat/commit/5a3db092982c0c58d4855304167ee757fe5e79bb
• https://github.com/apache/tomcat/commit/a03cabf3a36a42d27d8d997ed31f034f50ba6cd5
• https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.45
• https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.11
• https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.109
• http://www.openwall.com/lists/oss-security/2025/10/27/5
• https://github.com/advisories/GHSA-vfww-5hm6-hx2j

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

If an error occurred (including exceeding limits) during the processing of a multipart upload, temporary copies of the uploaded parts written to disc were not cleaned up immediately but left for the garbage collection process to delete. Depending on JVM settings, application memory usage and application load, it was possible that space for the temporary copies of uploaded parts would be filled faster than GC cleared it, leading to a DoS.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.11, from 10.1.0-M1 through 10.1.46, from 9.0.0.M1 through 9.0.109.

The following versions were EOL at the time the CVE was created but are
known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected.
Users are recommended to upgrade to version 11.0.12 or later, 10.1.47 or later or 9.0.110 or later which fixes the issue.

Severity

• CVSS Score: 2.3 / 10 (Low)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-61795
• https://lists.apache.org/thread/wm9mx8brmx9g4zpywm06ryrtvd3160pp
• https://github.com/apache/tomcat/commit/1cdf5f730ede75a0759492f179ac21ca4ff68e06
• https://github.com/apache/tomcat/commit/af6e9181620304c0d818121c29c074e1330610d0
• https://github.com/apache/tomcat/commit/afa422bd7ca1eef0f507259c682fd876494d9c3b
• https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.47
• https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.12
• https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.110
• http://www.openwall.com/lists/oss-security/2025/10/27/6
• https://github.com/advisories/GHSA-hgrr-935x-pq79

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial settings frame that reduces the maximum permitted concurrent streams.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from 9.0.0.M1 through 9.0.106. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100.

Users are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue.

Severity

• CVSS Score: 7.5 / 10 (High)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-53506
• https://lists.apache.org/thread/p09775q0rd185m6zz98krg0fp45j8kr0
• https://github.com/apache/tomcat/commit/2aa6261276ebe50b99276953591e3a2be7898bdb
• https://github.com/apache/tomcat/commit/434772930f362145516dd60681134e7f0cf8115b
• https://github.com/apache/tomcat/commit/be8f330f83ceddaf3baeed57522e571572b6b99b
• https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html
• http://www.openwall.com/lists/oss-security/2025/07/10/13
• https://github.com/advisories/GHSA-25xr-qj8w-c4vf

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

For some unlikely configurations of multipart upload, an Integer Overflow vulnerability in Apache Tomcat could lead to a DoS via bypassing of size limits.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from 9.0.0.M1 through 9.0.106. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions may also be affected.

Users are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue.

Severity

• CVSS Score: 7.5 / 10 (High)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-52520
• https://lists.apache.org/thread/trqq01bbxw6c92zx69kx2mw2qgmfy0o5
• https://github.com/apache/tomcat/commit/927d66fbc294cb65242102b817a45fd80834e040
• https://github.com/apache/tomcat/commit/a51e4bedccfafd35b7cdd0ee3e22267dee9f90db
• https://github.com/apache/tomcat/commit/fc42bbccb9041fafd194fbfdf3eab1d44cb5c45c
• https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html
• http://www.openwall.com/lists/oss-security/2025/07/10/12
• https://github.com/advisories/GHSA-wr62-c79q-cv37

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

Improper Input Validation vulnerability.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0-M1 through 9.0.112.

The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Older EOL versions are not affected. Tomcat did not validate that the host name provided via the SNI extension was the same as the host name provided in the HTTP host header field. If Tomcat was configured with more than one virtual host and the TLS configuration for one of those hosts did not require client certificate authentication but another one did, it was possible for a client to bypass the client certificate authentication by sending different host names in the SNI extension and the HTTP host header field.

The vulnerability only applies if client certificate authentication is only enforced at the Connector. It does not apply if client certificate authentication is enforced at the web application.

Users are recommended to upgrade to version 11.0.15 or later, 10.1.50 or later or 9.0.113 or later, which fix the issue.

Severity

• CVSS Score: 6.3 / 10 (Medium)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-66614
• https://lists.apache.org/thread/vw6lxtlh2qbqwpb61wd3sv1flm2nttw7
• https://github.com/apache/tomcat/commit/152c14885d45f5e0a8b59bd9f93c289cfe20ce30
• https://github.com/apache/tomcat/commit/258a591b61f8cf5c22109e21e5a2a38b63454fd2
• https://github.com/apache/tomcat/commit/5053fa82a1b2b52756810601227984a8b71888a4
• https://github.com/apache/tomcat/commit/9276b5e783c8cd5b3fe2bb716306b65004bdd940
• https://github.com/apache/tomcat/commit/972f9a5e2a07674d92610c478aac1b205d60724e
• https://github.com/apache/tomcat/commit/a4aa74232e826028cd2f7ba0445caf8a8b52c509
• https://tomcat.apache.org/security-10.html
• https://tomcat.apache.org/security-11.html
• https://tomcat.apache.org/security-9.html
• https://github.com/advisories/GHSA-fpj8-gq4v-p354

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

Improper Input Validation vulnerability in Apache Tomcat.

Tomcat did not limit HTTP/0.9 requests to the GET method. If a security constraint was configured to allow HEAD requests to a URI but deny GET requests, the user could bypass that constraint on GET requests by sending a (specification invalid) HEAD request using HTTP/0.9.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0.M1 through 9.0.112.

Older, EOL versions are also affected.

Users are recommended to upgrade to version 11.0.15 or later, 10.1.50 or later or 9.0.113 or later, which fixes the issue.

Severity

• CVSS Score: 2.7 / 10 (Low)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U

References

• https://nvd.nist.gov/vuln/detail/CVE-2026-24733
• https://lists.apache.org/thread/6xk3t65qpn1myp618krtfotbjn1qt90f
• https://github.com/apache/tomcat/commit/2e2fa23f2635bbb819759576a2f2f5e64ecf7c5f
• https://github.com/apache/tomcat/commit/6c73d74ff281260d74c836370ff6b82f1da8048b
• https://github.com/apache/tomcat/commit/711b465cf22684a1acf0cb43501cdbbce9b6c5f4
• https://tomcat.apache.org/security-10.html
• https://tomcat.apache.org/security-11.html
• https://tomcat.apache.org/security-9.html
• https://github.com/advisories/GHSA-qq5r-98hh-rxc9

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

Improper Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat.

When using an OCSP responder, Tomcat Native (and Tomcat's FFM port of the Tomcat Native code) did not complete verification or freshness checks on the OCSP response which could allow certificate revocation to be bypassed.

This issue affects Apache Tomcat Native:  from 1.3.0 through 1.3.4, from 2.0.0 through 2.0.11; Apache Tomcat: from 11.0.0-M1 through 11.0.17, from 10.1.0-M7 through 10.1.51, from 9.0.83 through 9.0.114.

The following versions were EOL at the time the CVE was created but are
known to be affected: from 1.1.23 through 1.1.34, from 1.2.0 through 1.2.39. Older EOL versions are not affected.

Apache Tomcat Native users are recommended to upgrade to versions 1.3.5 or later or 2.0.12 or later, which fix the issue.

Apache Tomcat users are recommended to upgrade to versions 11.0.18 or later, 10.1.52 or later or 9.0.115 or later which fix the issue.

Severity

• CVSS Score: 7.5 / 10 (High)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

• https://nvd.nist.gov/vuln/detail/CVE-2026-24734
• https://lists.apache.org/thread/292dlmx3fz1888v6v16221kpozq56gml
• https://github.com/advisories/GHSA-mgp5-rv84-w37q

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBalancerDrainingValve.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M23 through 9.0.115, from 8.5.30 through 8.5.100.
Other, unsupported versions may also be affected

Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.

Severity

• CVSS Score: 6.9 / 10 (Medium)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N

References

• https://nvd.nist.gov/vuln/detail/CVE-2026-25854
• https://lists.apache.org/thread/ghct3b6o74bp2vm7q875s1zh0dqrz3h0
• http://www.openwall.com/lists/oss-security/2026/04/09/21
• https://github.com/advisories/GHSA-9m3c-qcxr-9x87

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

Improper Encoding or Escaping of Output vulnerability in the JsonAccessLogValve component of Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, from 9.0.40 through 9.0.116.

Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117 , which fix the issue.

Severity

• CVSS Score: 7.5 / 10 (High)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

• https://nvd.nist.gov/vuln/detail/CVE-2026-34483
• https://lists.apache.org/thread/j1w7304yonlr8vo1tkb5nfs7od1y228b
• http://www.openwall.com/lists/oss-security/2026/04/09/26
• https://github.com/advisories/GHSA-rv64-5gf8-9qq8

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

Insertion of Sensitive Information into Log File vulnerability in the cloud membership for clustering component of Apache Tomcat exposed the Kubernetes bearer token.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, from 9.0.13 through 9.0.116.

Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.

Severity

• CVSS Score: 7.5 / 10 (High)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

• https://nvd.nist.gov/vuln/detail/CVE-2026-34487
• https://lists.apache.org/thread/4xpkwolpkrj8v5xzp5nyovtlqp3y850h
• http://www.openwall.com/lists/oss-security/2026/04/09/28
• https://github.com/advisories/GHSA-x4m4-345f-5h5g

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled and FFM is used in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.20, from 10.1.22 through 10.1.53, from 9.0.92 through 9.0.116.

Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fixes the issue.

Severity

• CVSS Score: 6.5 / 10 (Medium)
• Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

References

• https://nvd.nist.gov/vuln/detail/CVE-2026-34500
• https://lists.apache.org/thread/7rcl4zdxryc8hy3htyfyxkbqpxjtfdl2
• http://www.openwall.com/lists/oss-security/2026/04/09/29
• https://github.com/advisories/GHSA-24j9-x2wg-9qv6

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled vulnerability in Apache Tomcat, Apache Tomcat Native.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M7 through 10.1.52, from 9.0.83 through 9.0.115; Apache Tomcat Native: from 1.1.23 through 1.1.34, from 1.2.0 through 1.2.39, from 1.3.0 through 1.3.6, from 2.0.0 through 2.0.13.

Users are recommended to upgrade to version Tomcat Native 1.3.7 or 2.0.14 and Tomcat 11.0.20, 10.1.53 and 9.0.116, which fix the issue.

Severity

• CVSS Score: 9.1 / 10 (Critical)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References

• https://nvd.nist.gov/vuln/detail/CVE-2026-29145
• https://lists.apache.org/thread/yz5fxmhd2j43wgqykssdo7kltws57jfz
• http://www.openwall.com/lists/oss-security/2026/04/09/23
• https://github.com/advisories/GHSA-95jq-rwvf-vjx4

This data is provided by the GitHub Advisory Database (CC-BY 4.0).