CVE-2026-75973
CVE-2026-75973 · Apache Tomcat: Cross-context authentication mix-up with Jakarta Authentication configured
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
Improper Authentication vulnerability in Apache Tomcat. When Jakarta Authentication was configured with SimpleAuthConfigProvider as the default provider and multiple web application used that provider, the realm for the first web application to authenticate a request would be used for all web applications. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M4 through 9.0.121. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.26, 10.1.60, 9.0.122, which fixes the issue.
CVSS 7.3 · High · EPSS 0.2% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
apache tomcat
- Versions
- ≥ 11.0.0-M1, ≤ 11.0.25: Affected (semver)
- ≥ 10.1.0-M1, ≤ 10.1.59: Affected (semver)
- ≥ 9.0.0.M4, ≤ 9.0.121: Affected (semver)
- ≥ 8.5.0, ≤ 8.5.100: Affected (semver)
- ≥ 0, ≤ 7.0.109: Not affected (semver)
No fix published
tomcat10 Debian:12
- Versions
- 10.1.10-1
- 10.1.13-1
- 10.1.14-1
- 10.1.15-1
- 10.1.16-1
- 10.1.20-1
- 10.1.23-1
- 10.1.25-1
- 10.1.25-1~bpo12+1
- 10.1.25-2
- 10.1.30-1
- 10.1.30-1~bpo12+1
- 10.1.31-1
- 10.1.33-1
- 10.1.33-1~bpo12+1
- 10.1.34-0+deb12u1
- 10.1.34-0+deb12u2
- 10.1.34-1
- 10.1.35-1
- 10.1.40-1
- 10.1.40-1~bpo12+1
- 10.1.46-1
- 10.1.52-1
- 10.1.52-1~deb12u1
- 10.1.52-1~deb13u1
- 10.1.52-2
- 10.1.54-1
- 10.1.55-1
- 10.1.55-1~deb12u1
- 10.1.55-1~deb13u1
- 10.1.6-1
- 10.1.6-1+deb12u1
- 10.1.6-1+deb12u2
- 10.1.60-1
- 10.1.7-1
- 10.1.8-1
- 10.1.9-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat10 Debian:13
- Versions
- 10.1.40-1
- 10.1.46-1
- 10.1.52-1
- 10.1.52-1~deb12u1
- 10.1.52-1~deb13u1
- 10.1.52-2
- 10.1.54-1
- 10.1.55-1
- 10.1.55-1~deb12u1
- 10.1.55-1~deb13u1
- 10.1.60-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat10 Debian:14
- Versions
- 10.1.40-1
- 10.1.46-1
- 10.1.52-1
- 10.1.52-1~deb12u1
- 10.1.52-1~deb13u1
- 10.1.52-2
- 10.1.54-1
- 10.1.55-1
- 10.1.55-1~deb12u1
- 10.1.55-1~deb13u1
- Affected ranges
- ECOSYSTEM: < 10.1.60-1
Update to 10.1.60-1
tomcat11 Debian:13
- Versions
- 11.0.11-1
- 11.0.15-1
- 11.0.15-1~deb13u1
- 11.0.18-1
- 11.0.21-1
- 11.0.22-1
- 11.0.22-1~deb13u1
- 11.0.22-2
- 11.0.24-1
- 11.0.6-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat11 Debian:14
- Versions
- 11.0.11-1
- 11.0.15-1
- 11.0.15-1~deb13u1
- 11.0.18-1
- 11.0.21-1
- 11.0.22-1
- 11.0.22-1~deb13u1
- 11.0.22-2
- 11.0.24-1
- 11.0.6-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat9 Debian:12
- Affected ranges
- ECOSYSTEM: < 9.0.70-2
Update to 9.0.70-2
tomcat9 Debian:13
- Affected ranges
- ECOSYSTEM: < 9.0.70-2
Update to 9.0.70-2
tomcat9 Debian:14
- Affected ranges
- ECOSYSTEM: < 9.0.70-2
Update to 9.0.70-2
tomcat6 Ubuntu:Pro:14.04:LTS
- Versions
- 6.0.37-1
- 6.0.39-1
- 6.0.39-1ubuntu0.1
- 6.0.39-1ubuntu0.1+esm1
- 6.0.39-1ubuntu0.1+esm2
- 6.0.39-1ubuntu0.1+esm3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat7 Ubuntu:Pro:14.04:LTS
- Versions
- 7.0.42-1
- 7.0.47-1
- 7.0.50-1
- 7.0.52-1
- 7.0.52-1ubuntu0.1
- 7.0.52-1ubuntu0.3
- 7.0.52-1ubuntu0.6
- 7.0.52-1ubuntu0.7
- 7.0.52-1ubuntu0.8
- 7.0.52-1ubuntu0.9
- 7.0.52-1ubuntu0.10
- 7.0.52-1ubuntu0.11
- 7.0.52-1ubuntu0.13
- 7.0.52-1ubuntu0.14
- 7.0.52-1ubuntu0.15
- 7.0.52-1ubuntu0.16
- 7.0.52-1ubuntu0.16+esm1
- 7.0.52-1ubuntu0.16+esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat8 Ubuntu:Pro:16.04:LTS
- Versions
- 8.0.26-1
- 8.0.28-1
- 8.0.30-1
- 8.0.32-1
- 8.0.32-1ubuntu1
- 8.0.32-1ubuntu1.1
- 8.0.32-1ubuntu1.2
- 8.0.32-1ubuntu1.3
- 8.0.32-1ubuntu1.4
- 8.0.32-1ubuntu1.5
- 8.0.32-1ubuntu1.6
- 8.0.32-1ubuntu1.7
- 8.0.32-1ubuntu1.8
- 8.0.32-1ubuntu1.9
- 8.0.32-1ubuntu1.10
- 8.0.32-1ubuntu1.11
- 8.0.32-1ubuntu1.13
- 8.0.32-1ubuntu1.13+esm1
- 8.0.32-1ubuntu1.13+esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat7 Ubuntu:Pro:16.04:LTS
- Versions
- 7.0.64-1
- 7.0.68-1
- 7.0.68-1ubuntu0.1
- 7.0.68-1ubuntu0.3
- 7.0.68-1ubuntu0.4
- 7.0.68-1ubuntu0.4+esm1
- 7.0.68-1ubuntu0.4+esm2
- 7.0.68-1ubuntu0.4+esm3
- 7.0.68-1ubuntu0.4+esm4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat8 Ubuntu:Pro:18.04:LTS
- Versions
- 8.5.21-1ubuntu1
- 8.5.29-1
- 8.5.30-1
- 8.5.30-1ubuntu1
- 8.5.30-1ubuntu1.2
- 8.5.30-1ubuntu1.3
- 8.5.30-1ubuntu1.4
- 8.5.39-1ubuntu1~18.04.1
- 8.5.39-1ubuntu1~18.04.2
- 8.5.39-1ubuntu1~18.04.3
- 8.5.39-1ubuntu1~18.04.3+esm1
- 8.5.39-1ubuntu1~18.04.3+esm2
- 8.5.39-1ubuntu1~18.04.3+esm3
- 8.5.39-1ubuntu1~18.04.3+esm4
- 8.5.39-1ubuntu1~18.04.3+esm5
- 8.5.39-1ubuntu1~18.04.3+esm6
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat9 Ubuntu:Pro:18.04:LTS
- Versions
- 9.0.16-3~18.04.1
- 9.0.16-3ubuntu0.18.04.1
- 9.0.16-3ubuntu0.18.04.2
- 9.0.16-3ubuntu0.18.04.2+esm1
- 9.0.16-3ubuntu0.18.04.2+esm2
- 9.0.16-3ubuntu0.18.04.2+esm3
- 9.0.16-3ubuntu0.18.04.2+esm4
- 9.0.16-3ubuntu0.18.04.2+esm5
- 9.0.16-3ubuntu0.18.04.2+esm6
- 9.0.16-3ubuntu0.18.04.2+esm7
- 9.0.16-3ubuntu0.18.04.2+esm8
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat9 Ubuntu:Pro:20.04:LTS
- Versions
- 9.0.24-1
- 9.0.27-1
- 9.0.31-1
- 9.0.31-1ubuntu0.1
- 9.0.31-1ubuntu0.2
- 9.0.31-1ubuntu0.3
- 9.0.31-1ubuntu0.4
- 9.0.31-1ubuntu0.5
- 9.0.31-1ubuntu0.6
- 9.0.31-1ubuntu0.7
- 9.0.31-1ubuntu0.8
- 9.0.31-1ubuntu0.9
- 9.0.31-1ubuntu0.9+esm1
- 9.0.31-1ubuntu0.9+esm2
- 9.0.31-1ubuntu0.9+esm3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat9 Ubuntu:Pro:22.04:LTS
- Versions
- 9.0.43-3
- 9.0.54-1
- 9.0.55-1
- 9.0.58-1
- 9.0.58-1ubuntu0.1
- 9.0.58-1ubuntu0.1+esm1
- 9.0.58-1ubuntu0.1+esm2
- 9.0.58-1ubuntu0.1+esm3
- 9.0.58-1ubuntu0.1+esm4
- 9.0.58-1ubuntu0.2
- 9.0.58-1ubuntu0.2+esm1
- 9.0.58-1ubuntu0.2+esm2
- 9.0.58-1ubuntu0.2+esm3
- 9.0.58-1ubuntu0.2+esm4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat10 Ubuntu:24.04:LTS
- Versions
- 10.1.10-1
- 10.1.14-1
- 10.1.15-1
- 10.1.16-1
- 10.1.16-1ubuntu0.1~esm1
- 10.1.16-1ubuntu0.1~esm2
- 10.1.16-1ubuntu0.1~esm3
- 10.1.16-1ubuntu0.1~esm4
- 10.1.55-1ubuntu2~24.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat9 Ubuntu:24.04:LTS
- Versions
- 9.0.70-1ubuntu1
- 9.0.70-2
- 9.0.70-2ubuntu0.1
- 9.0.70-2ubuntu0.1+esm1
- 9.0.70-2ubuntu0.1+esm2
- 9.0.70-2ubuntu0.1+esm3
- 9.0.118-1~24.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat10 Ubuntu:26.10
- Versions
- 10.1.40-1ubuntu1
- 10.1.54-1
- 10.1.54-1ubuntu1
- 10.1.54-1ubuntu2
- 10.1.55-1ubuntu1
- 10.1.55-1ubuntu2
- 10.1.57~us1-0ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat11 Ubuntu:26.10
- Versions
- 11.0.18-1
- 11.0.22-2
- 11.0.22-2ubuntu1
- 11.0.22-2ubuntu2
- 11.0.24-1ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat9 Ubuntu:26.10
- Versions
- 9.0.115-1
- 9.0.115-1ubuntu1
- 9.0.118-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat10 Ubuntu:26.04:LTS
- Versions
- 10.1.40-1ubuntu1
- 10.1.40-1ubuntu1.26.04.1
- 10.1.55-1ubuntu2~26.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tomcat9 Ubuntu:26.04:LTS
- Versions
- 9.0.95-1ubuntu1
- 9.0.111-1
- 9.0.115-1
- 9.0.115-1ubuntu0.1
- 9.0.118-1~26.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published