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Message-ID: <696ca352-19e4-4a38-a9d7-590fb8c5284a@apache.org>
Date: Tue, 12 May 2026 16:34:36 +0100
From: Mark Thomas <markt@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-43515: Apache Tomcat: Security constraints not correctly
applied
Severity: moderate
Affected versions:
- Apache Tomcat 11.0.0-M1 through 11.0.21
- Apache Tomcat 10.1.0-M1 through 10.1.54
- Apache Tomcat 9.0.0.M1 through 9.0.117
- Apache Tomcat 8.5.0 through 8.5.100
- Apache Tomcat 7.0.0 through 7.0.109
- Apache Tomcat before 7.00 unknown
Description:
Improper Authorization vulnerability when multiple method constraints
define an HTTP method for the same extension in Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from
10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0
through 8.5.100, from 7.0.0 through 7.0.109.
Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118
which fix the issue.
References:
https://lists.apache.org/thread/746nxfxod0wsocxtmv8pb8nkgmwpc6bb
https://tomcat.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-43515
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