HIGHCVE-2026-43513Published Modified CNA apache
CVE-2026-43513: Apache Tomcat: LockOutRealm treats user names as case-sensitive
Improper Handling of Case Sensitivity vulnerability in LockOutRealm in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Older unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.
Metrics
- CVSS v3.1
- 7.5
- Severity
- HIGH
- Fixed in
- —
- Affected Products
- 1
Affected packages
- Apache Software Foundation / Apache Tomcat≤ 11.0.21 · ≤ 10.1.54 · ≤ 9.0.117 · ≤ 8.5.100 · ≤ 7.0.109
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NReferences