CVE-2026-43515 — Apache Tomcat: Security constraints not correctly applied

Description (CNA)

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 (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Tomcat	affected 11.0.0-M1 through 11.0.21; affected 10.1.0-M1 through 10.1.54; affected 9.0.0.M1 through 9.0.117; affected 8.5.0 through 8.5.100; affected 7.0.0 through 7.0.109; unknown 0 before 7.0.0

CWE

CWE-285

References

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

ADP enrichment

CVE

No English description supplied.

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

CISA-ADP

No English description supplied.

No references supplied.