| Name | CVE-2026-55276 |
| Description | Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat meant that special roles and empty authorisation constraints were not included when the effective web.xml was logged. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119 which fixes the issue. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| tomcat10 (PTS) | bookworm | 10.1.52-1~deb12u1 | vulnerable |
| bookworm (security) | 10.1.55-1~deb12u1 | vulnerable | |
| trixie | 10.1.52-1~deb13u1 | vulnerable | |
| trixie (security) | 10.1.55-1~deb13u1 | vulnerable | |
| forky, sid | 10.1.55-1 | vulnerable | |
| tomcat11 (PTS) | trixie | 11.0.15-1~deb13u1 | vulnerable |
| trixie (security) | 11.0.22-1~deb13u1 | vulnerable | |
| forky, sid | 11.0.22-2 | vulnerable | |
| tomcat9 (PTS) | bullseye | 9.0.43-2~deb11u10 | vulnerable |
| bullseye (security) | 9.0.118-0+deb11u1 | fixed | |
| bookworm | 9.0.70-2 | fixed | |
| trixie | 9.0.95-1 | fixed | |
| forky, sid | 9.0.118-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| tomcat10 | source | (unstable) | (unfixed) | |||
| tomcat11 | source | (unstable) | (unfixed) | |||
| tomcat9 | source | (unstable) | 9.0.70-2 |
Starting with 9.0.70-2 src:tomcat9 no longer ships the server stack, using that as the fixed version
https://github.com/apache/tomcat/commit/f844614c6d92eeb11e81e179606bf4c390f642dd (11.0.23)
https://github.com/apache/tomcat/commit/e391c6b201eae2ad9707a1335aff68ab8b3e0f84 (11.0.23)
https://github.com/apache/tomcat/commit/25677f90fd721c26ef0f613d34ef8275b1aafc31 (10.1.56)
https://github.com/apache/tomcat/commit/17daf80a738d66a8e6cad05c5e32c2db81500ce1 (10.1.56)
https://github.com/apache/tomcat/commit/3ca8cae5fd3796b1bd9759e11b0e238161e7a39c (9.0.119)