Apache Tomcat: Servlet role references can bypass declarative role constraints

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-66422
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-25 22:17:05 UTC
Updated2026-08-25 22:17:05 UTC
DescriptionImproper Authorization vulnerability in Apache Tomcat cause by security-role-ref definitions being incorrectly used as role aliases within the Realm in additional to the correct usage with Request.isUserInRole(). This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.25 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.46 through 8.5.100, from 7.0.97 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.

Risk And Classification

Problem Types: CWE-285 | CWE-285 CWE-285 Improper Authorization

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache Tomcat affected 11.0.0-M1 11.0.24 semver Not specified
CNA Apache Software Foundation Apache Tomcat affected 10.1.0-M1 10.1.57 semver Not specified
CNA Apache Software Foundation Apache Tomcat affected 9.0.25 9.0.120 semver Not specified
CNA Apache Software Foundation Apache Tomcat affected 8.5.46 8.5.100 semver Not specified
CNA Apache Software Foundation Apache Tomcat affected 7.0.97 7.0.109 semver Not specified
CNA Apache Software Foundation Apache Tomcat unaffected 7.0.97 semver Not specified

References

ReferenceSourceLinkTags
lists.apache.org/thread/j5plylz1b2vhqvbkqn7k58nygxhcpk73 [email protected] lists.apache.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: 4ra1n, pyn3rd and unam4 (en)

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