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Incorrect Behavior Order: Authorization Before Parsing and Canonicalization The advisory has been revoked - it doesn't affect any version of package tomcat9  (opens in a new tab)

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EPSS
1.22% (68th percentile)

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  • Snyk IDSNYK-RHEL10-TOMCAT9-18671521
  • published12 Aug 2026
  • disclosed12 May 2026
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Introduced: 12 May 2026

CVE-2026-43515  (opens in a new tab)
CWE-551  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat9 package and not the tomcat9 package as distributed by RHEL.

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.