Fixed in Apache Tomcat 9.0.122

Low: WebSocket message smuggling with per-message-deflate CVE-2026-87022 Improper handling of length parameter allows WebSocket message smuggling when per-message-deflate is used. This was fixed with commit 959a52a2. This issue was reported to the Tomcat security team on 7 September 2026. The iss...

PT-2026-97281

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 11.0.0-M1 through 11.0.25 Apache Tomcat versions 10.1.0-M1 through 10.1.58 Apache Tomcat versions 9.0.0-M1 through 9.0.121 Apache Tomcat versions 8.5.0 through 8.5.100 Description An improper check for certificate...

PT-2026-97282

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 11.0.0-M1 through 11.0.25 Apache Tomcat versions 10.1.0-M1 through 10.1.59 Apache Tomcat versions 9.0.0.M4 through 9.0.121 Apache Tomcat versions 8.5.0 through 8.5.100 Description An improper authentication issue exists...

PT-2026-97292

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 11.0.0-M1 through 11.0.25 Apache Tomcat versions 10.1.0-M1 through 10.1.59 Apache Tomcat versions 9.0.0.M1 through 9.0.121 Apache Tomcat versions 8.5.0 through 8.5.100 Apache Tomcat versions 7.0.0 through 7.0.109...

PT-2026-97290

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 11.0.0-M5 through 11.0.25 Apache Tomcat versions 10.1.8 through 10.1.59 Apache Tomcat versions 9.0.74 through 9.0.121 Apache Tomcat versions 8.5.88 through 8.5.100 Description An uncontrolled resource consumption issue...

PT-2026-97300

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 11.0.0-M1 through 11.0.25 Apache Tomcat versions 10.1.0-M1 through 10.1.59 Apache Tomcat versions 9.0.0.M1 through 9.0.121 Apache Tomcat versions 8.5.0 through 8.5.100 Apache Tomcat versions 7.0.56 through 7.0.109...

PT-2026-97299

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 11.0.22 through 11.0.25 Apache Tomcat versions 10.1.55 through 10.1.59 Apache Tomcat versions 9.0.118 through 9.0.121 Description An inconsistent interpretation of HTTP/2 requests, known as HTTP Request/Response smugglin...

PT-2026-97284

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 11.0.0-M1 through 11.0.25 Apache Tomcat versions 10.1.0-M1 through 10.1.59 Apache Tomcat versions 9.0.47 through 9.0.121 Apache Tomcat versions 8.5.67 through 8.5.100 Description An inconsistent interpretation of HTTP...

Fixed in Apache Tomcat 10.1.60

Low: WebSocket message smuggling with per-message-deflate CVE-2026-87022 Improper handling of length parameter allows WebSocket message smuggling when per-message-deflate is used. This was fixed with commit 567a8551. This issue was reported to the Tomcat security team on 7 September 2026. The iss...

SUSE SLES12: tomcat / tomcat-admin-webapps / tomcat-docs-webapp / etc (SUSE-SU-2026:4126-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4126-1 advisory. - CVE-2026-65182: Apache Tomcat: Bypass longest prefix security constraint bsc1276893. - CVE-2026-65183: Apache Tomcat: TOCTOU when...

SUSE SLES15: tomcat11 / tomcat11-admin-webapps / tomcat11-el-6_0-api / etc (SUSE-SU-2026:4114-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4114-1 advisory. - CVE-2026-65182: Apache Tomcat: Bypass longest prefix security constraint bsc1276893. - CVE-2026-65183: Apache Tomcat: TOCTOU when...

SUSE SLES15: tomcat10 / tomcat10-admin-webapps / tomcat10-el-5_0-api / etc (SUSE-SU-2026:4119-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4119-1 advisory. - CVE-2026-65182: Apache Tomcat: Bypass longest prefix security constraint bsc1276893. - CVE-2026-65183: Apache Tomcat: TOCTOU when...

Astra Linux – Vulnerability in Tomcat9

Improper neutralization of script-related HTML tags in a web page constitutes an XSS vulnerability in the number guessing example for Apache Tomcat. This issue affects Apache Tomcat versions as follows: 11.0.0-M1 through 11.0.22, 10.1.0-M1 through 10.1.55, 9.0.0.M1 through 9.0.118, 8.5.0 through...

Astra Linux – Vulnerability in Tomcat9

An improper authorization vulnerability in Apache Tomcat leads to security constraints that ignore any methods or method omissions configured as part of the constraints. This issue affects Apache Tomcat versions from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through...

Astra Linux – Vulnerability in Tomcat9

A flaw in improper authentication in Apache Tomcat allowed for a replay attack on the EncryptionInterceptor in the cluster component. This issue affects Apache Tomcat versions: 11.0.0-M1 through 11.0.22, 10.1.0-M1 through 10.1.55, 9.0.13 through 9.0.18, 8.5.38 through 8.5.100, and 7.0.100 through...

Astra Linux – Vulnerability in Tomcat9

An incorrect authorization vulnerability in Apache Tomcat’s FORM authentication process allows for bypassing a security constraint that restricts users’ access to resources via POST requests, but not via GET requests. This issue affects Apache Tomcat versions from 11.0.0-M1 through 11.0.24, from...

Astra Linux – Vulnerability in Tomcat9

There is a vulnerability related to improper input validation in Apache Tomcat. In versions of Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82, and from 8.5.0 through 8.5.95, HTTP trailer headers were not parsed correctly. A trailer header th...

Astra Linux – Vulnerability in Tomcat9

Check-time/use-time TOCTOU race condition vulnerability in Apache Tomcat: When creating Unix domain sockets, an unauthorized local user can access the Unix domain socket. This issue affects Apache Tomcat: versions from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, and from 9.0.42...

Astra Linux – Vulnerability in Tomcat9

Uncontrolled resource consumption vulnerability in Apache Tomcat’s WebSocket chat example. This issue affects Apache Tomcat versions: 11.0.0-M20 through 11.0.24, 10.1.24 through 10.1.57, and 9.0.89 through 9.0.120. Users who have followed security guidelines to remove example web applications are...

Astra Linux – Vulnerability in Tomcat9

There is a vulnerability in input validation in Apache Tomcat due to an incomplete fix for CVE-2026-32990. This issue affects Apache Tomcat versions from 11.0.20 through 11.0.24, from 10.1.53 through 10.1.57, and from 9.0.115 through 9.0.120. Users are recommended to upgrade to version 11.0.25,...