CVE-2026-55955

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.

References

https://lists.apache.org/thread/g4p5sf45p3f9r011pwqs9r54yd64s106

http://www.openwall.com/lists/oss-security/2026/06/29/24

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3