Bug 2494678 (CVE-2026-55955) - CVE-2026-55955 tomcat: Apache Tomcat: Replay attack via improper authentication in EncryptionInterceptor
Summary: CVE-2026-55955 tomcat: Apache Tomcat: Replay attack via improper authenticati...
Keywords:
Status: NEW
Alias: CVE-2026-55955
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2494723
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-29 21:02 UTC by OSIDB Bzimport
Modified: 2026-06-29 22:08 UTC (History)
10 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-06-29 21:02:40 UTC 
Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.13 through 9.0.18, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109.

Users are recommended to upgrade to version 11.0.23, 10.1.56, 9.0.119, which fixes the issue.
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