Medium [CVE-2026-25854] Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBalancerDrainingValve
This medium-severity Apache Software Foundation advisory covers CVE-2026-25854 affecting Apache Tomcat, Tomcat.
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Summary
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.
- 11.0.0-M1 through 11.0.18
- 10.1.0-M1 through 10.1.52
- 9.0.0.M23 through 9.0.115
- 8.5.30 through 8.5.100.
- through 8.5.100
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- 11.0.20
- 10.1.53
- 9.0.116
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation
Upgrade to a fixed release: 11.0.20, 10.1.53, 9.0.116. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Discussion(0)
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