Vulnerabilities CVE-2026-43513

CVE-2026-43513

None

Open

TLP:CLEAR

Apache Tomcat: LockOutRealm treats user names as case-sensitive

NVD CVE.org

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Description

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.

Details

EPSS Score ⓘ: 0.47%

38.5th percentile
Confidence: 90%
Published: May 12, 2026
Last Modified: May 14, 2026

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