CVE-2026-25854: Apache Tomcat has an Open Redirect vulnerability

April 9, 2026 (updated April 10, 2026)

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.

References

github.com/advisories/GHSA-9m3c-qcxr-9x87
github.com/apache/tomcat
lists.apache.org/thread/ghct3b6o74bp2vm7q875s1zh0dqrz3h0
nvd.nist.gov/vuln/detail/CVE-2026-25854

Code Behaviors & Features

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