PT-2026-53744 · Apache · Apache Tomcat

Mark Thomas

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Published

2026-06-29

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Updated

2026-06-29

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CVE-2026-55955

None

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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.

Improper Authentication

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Weakness Enumeration

Related Identifiers

CVE-2026-55955

Affected Products

Apache Tomcat