CVE-2026-25854 — MEDIUM (6.1)

Q: How severe is CVE-2026-25854?

CVE-2026-25854 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-25854?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Tomcat.

Vulnerability 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.

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Apache	Tomcat	>= 9.0.1, < 9.0.116

Related Weaknesses (CWE)

CWE-601

References

https://lists.apache.org/thread/ghct3b6o74bp2vm7q875s1zh0dqrz3h0Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/04/09/21Mailing ListThird Party Advisory

FAQ

What is CVE-2026-25854?

CVE-2026-25854 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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...

How severe is CVE-2026-25854?

CVE-2026-25854 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-25854?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Tomcat.