Open Redirect Vulnerability in Apache Tomcat Products
CVE-2026-25854

6.1MEDIUM

Key Information:

Vendor

Apache
Status
Apache Tomcat
Vendor
CVE Published:
9 April 2026

What is CVE-2026-25854?

An Open Redirect vulnerability exists in Apache Tomcat that could lead to potential exposure by allowing URLs to be redirected to untrusted sites. This risk originates from the LoadBalancerDrainingValve functionality. Users are strongly advised to upgrade to the fixed versions: Apache Tomcat 11.0.20, 10.1.53, or 9.0.116 to mitigate this issue.

Affected Version(s)

Apache Tomcat 11.0.0-M1 <= 11.0.18

Apache Tomcat 10.1.0-M1 <= 10.1.52

Apache Tomcat 9.0.0.M23 <= 9.0.115

References

https://lists.apache.org/thread/ghct3b6o74bp2vm7q875s1zh0...
vendor-advisory

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

gregk4sec (https://github.com/gregk4sec)
.