Vulnerability in Red Hat Enterprise Linux 10
CVE-2026-42011
A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities (CAs) only had excluded name constraints. A remote attacker could exploit this to bypas…
Vulnerability class: Improper Certificate Validation
EPSS: 0.000 (3.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Red Hat Enterprise Linux 10 — versions 0:3.8.10-4.el10_2
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:3.6.16-8.el8_10.6
- Red Hat Enterprise Linux 9 — versions 0:3.8.10-4.el9_8
- Red Hat Hardened Images — versions 3.8.13-1.hum1
- Red Hat Openshift Container Platform 4
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
Frequently asked questions
- What is CVE-2026-42011?
- CVE-2026-42011 is a high-severity vulnerability in Red Hat Enterprise Linux 10, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2026-05-07.
- How severe is CVE-2026-42011?
- High severity. CVSS v3 base score is 7.4 out of 10.