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 products
apache: tomcat
References2
- lists.apache.org/thread/746nxfxod0wsocxtmv8pb8nkgmwpc6bb Mailing ListVendor Advisory
- www.openwall.com/lists/oss-security/2026/05/12/11 Mailing ListThird Party Advisory
Metrics
- CVSS 3.1
-
9.1
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - EPSS — exploit probability
- 1% percentile: 69 · as of 14 November 2026
- CWE
- CWE-285
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