CVE-2026-43515

Published: May 12, 2026Modified: Jun 17, 2026

9.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitability: 3.9 / Impact: 5.2

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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.

Affected (5)

Products: Apache: Tomcat

Apache

1 product

Tomcat

Configuration A

5 vulnerable

Vulnerable Software	Affected Versions
Apache Tomcat	From 10.1.0 to 10.1.55
Apache Tomcat	From 11.0.0 to 11.0.22
Apache Tomcat	From 7.0.0 to 7.0.109
Apache Tomcat	From 8.5.0 to 8.5.100
Apache Tomcat	From 9.0.0 to 9.0.118

Related CWEs

CWE-285

Improper Authorization

The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

References (2)

https://lists.apache.org/thread/746nxfxod0wsocxtmv8pb8nkgmwpc6bb

Source: security@apache.org

Mailing ListVendor Advisory

http://www.openwall.com/lists/oss-security/2026/05/12/11

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

Timeline

No history available yet.