| Name | CVE-2026-86248 |
| Description | CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.25, from 10.1.22 through 10.1.59, from 9.0.92 through 9.0.121. Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix 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) |
| Debian Bugs | 1148824 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| tomcat10 (PTS) | bookworm, bookworm (security) | 10.1.55-1~deb12u1 | vulnerable |
| trixie (security), trixie | 10.1.55-1~deb13u1 | vulnerable | |
| forky, sid | 10.1.60-1 | fixed | |
| tomcat11 (PTS) | trixie (security), trixie | 11.0.22-1~deb13u1 | vulnerable |
| forky, sid | 11.0.24-1 | vulnerable | |
| tomcat9 (PTS) | bookworm | 9.0.70-2 | fixed |
| trixie | 9.0.95-1 | fixed | |
| forky, sid | 9.0.122-1 | 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) | 10.1.60-1 | |||
| tomcat11 | source | (unstable) | (unfixed) | 1148824 | ||
| 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/9aab76056e7470bcc8ca9a20b33b6558b1046da2 (11.0.26)
https://github.com/apache/tomcat/commit/e5191b1e3292681097503f093b5432451ff5aa83 (10.1.60)
https://github.com/apache/tomcat/commit/fc41d82e0e383e4d6e88ad321d245dafdc17d26d (9.0.122)