CVE-2026-25854

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 through 11.0.18, from 10.1.0 through 10.1.52, from 9.0.0 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.

How to fix CVE-2026-25854

To remediate CVE-2026-25854, upgrade the affected package to a fixed version below.

• —upgrade to 9.0.116 or later
• —no fix listed
• —no fix listed
• —upgrade to 9.0.70-2 or later
• —upgrade to 9.0.116 or later
• —upgrade to 9.0.116 or later
• —upgrade to 9.0.116 or later

Is CVE-2026-25854 being exploited?

Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.

Affected packages (7)

• >= 8.5.30, < 9.0.116, >= 10.1.0, < 10.1.53, >= 11.0.0, < 11.0.20
• from 0
• from 0
• from 0, < 9.0.70-2
• >= 8.5.30, < 9.0.116
• >= 8.5.30, < 9.0.116
• >= 8.5.30, < 9.0.116

CVSS scores

References (5)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-25854
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2026-25854
• PATCHgithub.com/apache/tomcat
• WEBlists.apache.org/thread/ghct3b6o74bp2vm7q875s1zh0dqrz3h0
• WEB