CVE-2026-34500 — MEDIUM (6.5)

Q: How severe is CVE-2026-34500?

CVE-2026-34500 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-34500?

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

Vulnerability Description

CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled and FFM is used in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.20, from 10.1.22 through 10.1.53, from 9.0.92 through 9.0.116. Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fixes the issue.

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Apache	Tomcat	>= 9.0.92, < 9.0.117

Related Weaknesses (CWE)

CWE-287

References

https://lists.apache.org/thread/7rcl4zdxryc8hy3htyfyxkbqpxjtfdl2Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/04/09/29Mailing ListThird Party Advisory

FAQ

What is CVE-2026-34500?

CVE-2026-34500 is a vulnerability with a CVSS score of 6.5 (MEDIUM). CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled and FFM is used in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.20,...

How severe is CVE-2026-34500?

CVE-2026-34500 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-34500?

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