CVE-2026-25854
MEDIUM6.1EPSS 0.03%Apache Tomcat has an Open Redirect vulnerability
Published: 4/9/2026Modified: 4/28/2026
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.
Affected packages (7)
- Bitnami/tomcat>= 8.5.30, < 9.0.116, >= 10.1.0, < 10.1.53, >= 11.0.0, < 11.0.20
- Debian/tomcat10from 0
- Debian/tomcat11from 0
- Debian/tomcat9from 0, < 9.0.70-2
- Maven/org.apache.tomcat.embed:tomcat-embed-core>= 8.5.30, < 9.0.116
- Maven/org.apache.tomcat:tomcat>= 8.5.30, < 9.0.116
- Maven/org.apache.tomcat:tomcat-catalina>= 8.5.30, < 9.0.116
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |