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Description

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.

PUBLISHED Reserved 2026-04-20 | Published 2026-05-12 | Updated 2026-05-14 | Assigner apache

Problem types

CWE-20 Improper Input Validation

Product status

Default status
unaffected

11.0.0-M1 (semver)
affected

10.1.0-M1 (semver)
affected

9.0.0.M1 (semver)
affected

10.0.0-M1 (semver)
affected

8.5.0 (semver)
affected

Credits

Dawit Jeong (@dawitngoliath) finder

References

www.openwall.com/lists/oss-security/2026/05/12/13

lists.apache.org/thread/qwg0q16z7xkb2qrr853wdll5531mvl1r vendor-advisory

cve.org (CVE-2026-41293)

nvd.nist.gov (CVE-2026-41293)

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