CVE-2026-55276 — Apache Tomcat: Logged effective web.xml is incomplete

Description (CNA)

Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat meant that special roles and empty authorisation constraints were not included when the effective web.xml was logged. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119 which fixes the issue.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Tomcat	affected 11.0.0-M1 through 11.0.22; affected 10.1.0-M1 through 10.1.55; affected 9.0.0.M1 through 9.0.118; affected 8.5.0 through 8.5.100; unaffected 0 before 8.0.0

CWE

CWE-670

References

https://lists.apache.org/thread/jy09xjlzn6r2qwvqoph8vcmf959yq68v

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/06/29/23

CISA-ADP

No English description supplied.

No references supplied.