CVEvulnerability
CVE-2026-87022
7.5 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-09-23
- Last modified
- 2026-09-23
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weaknesses
- CWE-130
Description
Improper handling of length parameter inconsistency vulnerability in Apache Tomcat allows WebSocket message smuggling when per-message-deflate is used.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.
The following versions were EOS at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.56 through 7.0.109. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.1.22, which fix the issue.
Related
Weakness · CWE (1)
- CWE-130 Improper Handling of Length Parameter Inconsistency weakness
References
- https://lists.apache.org/thread/ypvlkjqsq0480fnk9jm6h9qllddwlw4w lists.apache.org
- http://www.openwall.com/lists/oss-security/2026/09/23/30 www.openwall.com