CVE-2026-34500

medium Red Hat
CVSS v3 Base Score
5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score
0.2%
Exploitation probability in 30 days
Top 58% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
None
Availability
None
Published: April 9, 2026 (91 days ago)
Last Modified: April 9, 2026
Vendor: Red Hat
Fix Available: ✓ Yes
Source: REDHAT

Description

A flaw was found in Apache Tomcat where OCSP-based certificate validation may incorrectly soft-fail during CLIENT_CERT authentication, even when soft-fail is disabled, under certain FFM-related execution paths. This can result in client certificates being accepted despite failed or unverifiable revocation checks, weakening certificate validation in specific mTLS configurations.

CWE

CWE-303

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9Red Hat JBoss Web Server 5Red Hat JBoss Web Server 6.2.3Red Hat JBoss Web Server 6.2 on RHEL 10Red Hat JBoss Web Server 6.2 on RHEL 8Red Hat JBoss Web Server 6.2 on RHEL 9

Fix Status

✅ Fix Available

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 lists.apache.org