Apache Tomcat: Logged effective web.xml is incomplete

Summary

CVECVE-2026-55276
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-29 21:16:45 UTC
Updated2026-06-30 15:16:58 UTC
DescriptionAlways-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.

Risk And Classification

Primary CVSS: v3.1 9.1 CRITICAL from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Problem Types: CWE-670 | CWE-670 CWE-670 Always-Incorrect Control Flow Implementation


VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache Tomcat affected 11.0.0-M1 11.0.22 semver Not specified
CNA Apache Software Foundation Apache Tomcat affected 10.1.0-M1 10.1.55 semver Not specified
CNA Apache Software Foundation Apache Tomcat affected 9.0.0.M1 9.0.118 semver Not specified
CNA Apache Software Foundation Apache Tomcat affected 8.5.0 8.5.100 semver Not specified
CNA Apache Software Foundation Apache Tomcat unaffected 8.0.0 semver Not specified

References

ReferenceSourceLinkTags
lists.apache.org/thread/jy09xjlzn6r2qwvqoph8vcmf959yq68v [email protected] lists.apache.org
www.openwall.com/lists/oss-security/2026/06/29/23 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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