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.
History

Mon, 29 Jun 2026 21:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Apache Tomcat: EncryptInterceptor not protected against replay attacks
Weaknesses CWE-287
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-06-29T22:24:33.117Z

Reserved: 2026-06-17T18:04:49.663Z

Link: CVE-2026-55955

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

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cve-icon OpenCVE Enrichment

Updated: 2026-06-29T22:30:05Z