Low [CVE-2026-3832] Security bypass allows acceptance of revoked server certificates via crafted OCSP response
This low-severity Red Hat Linux advisory covers CVE-2026-3832 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 9, Red Hat Discovery 2.
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Summary
Security bypass allows acceptance of revoked server certificates via crafted OCSP response. Red Hat rates this low (CVSS 3.7).
Weakness: CWE-179. Affected package(s): gnutls-main, rhui5/haproxy-rhel9:1781525671, gnutls, rhui5/installer-rhel9:1781525693, rhui5/cds-rhel9:1781525684, discovery/discovery-ui-rhel9:1782166952.
Resolved in Red Hat advisory RHSA-2026:20613 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 9; Red Hat Discovery 2; Red Hat Hardened Images; and 6 more.
- gnutls-main-3.8.13-1.hum1
- rhui5/haproxy-rhel9:1781525671
- gnutls-0:3.8.9-9.el10_0.19
- gnutls-0:3.8.10-4.el9_8
- rhui5/installer-rhel9:1781525693
- gnutls-0:3.8.10-4.el10_2
- rhui5/cds-rhel9:1781525684
- discovery/discovery-ui-rhel9:1782166952
- discovery/discovery-server-rhel9:1782159791
- rhui5/rhua-rhel9:1781525739
Official advisory · high-confidence parse· fetched 4 months ago·verify at source
- RHSA-2026:20613
Official advisory · high-confidence parse· fetched 4 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:20613 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 4 months ago·verify at source
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