CVE-2026-25854

Apache Tomcat: Occasionally open redirect

State: Published
Severity: 6.1 Medium
Published: Apr 9, 2026
Updated: Apr 10, 2026
Reserved: Feb 6, 2026

Description

Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBalancerDrainingValve.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M23 through 9.0.115, from 8.5.30 through 8.5.100. Other, unsupported versions may also be affected

Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.

Scores

CVSS	Score	Vector	Source
3.1	6.1 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	CISA-ADP

Weaknesses

CWE-601 URL Redirection to Untrusted Site ('Open Redirect')

Affected Products

Product	Versions
Apache TomcatApache Software Foundation	11.0.0-M1 through 11.0.18Affected 10.1.0-M1 through 10.1.52Affected 9.0.0.M23 through 9.0.115Affected 8.5.30 through 8.5.100Affected 7.0.109 and earlierNot affected

References

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