CVE-2026-41293

Improper Input Validation vulnerability 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 10.0.0-M1 through 10.0.27. Older, end of support versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - security@apache.org

Published

2026-05-12

Last modified

2026-10-26

Weaknesses

CWE-20

Affected products

• Tomcat (Apache)
• Apache Tomcat (Apache Software Foundation)

References

• https://lists.apache.org/thread/qwg0q16z7xkb2qrr853wdll5531mvl1r
• http://www.openwall.com/lists/oss-security/2026/05/12/13