🛡️ CVE-2026-43513
🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-178 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

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

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE CWE-178
Public Exploit ✅ No
Source NVD
Published 2026-05-12
Updated 2026-06-15
Modified 2026-05-19
Fix URL N/A

Affected Packages

Software From version Fixed in
org.apache.tomcat:tomcat 11.0.0-M1 11.0.22
org.apache.tomcat:tomcat-catalina 11.0.0-M1 11.0.22
org.apache.tomcat.embed:tomcat-embed-core 11.0.0-M1 11.0.22
tomcat
unknown

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