This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-55955 →
DEBIAN-CVE-2026-55955
Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component. This issue...
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
tomcat10
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
tomcat10
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
tomcat10
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"10.1.60-1"}]}]
Debian:13
tomcat11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
tomcat11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"11.0.24-1"}]}]
Debian:12
tomcat9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.70-2"}]}]
Debian:13
tomcat9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.70-2"}]}]
Debian:14
tomcat9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.70-2"}]}]
References
- advisory security-tracker.debian.org