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Description

A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted Online Certificate Status Protocol (OCSP) response during a TLS handshake. Due to a logic error in how gnutls processes multi-record OCSP responses, a client with OCSP verification enabled may incorrectly accept a revoked server certificate, potentially leading to a compromise of trust.

PUBLISHED Reserved 2026-03-09 | Published 2026-04-30 | Updated 2026-05-04 | Assigner redhat




LOW: 3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Problem types

Incorrect Behavior Order: Early Validation

Product status

Default status
unaffected

Any version before 3.8.13
affected

Default status
affected

3.8.13-1.hum1 (rpm) before *
unaffected

Default status
affected

Default status
affected

Default status
affected

Default status
affected

Default status
affected

Default status
affected

Timeline

2026-03-09:Reported to Red Hat.
2026-04-30:Made public.

References

gitlab.com/gnutls/gnutls/-/issues/1801 exploit

access.redhat.com/errata/RHSA-2026:13274 (RHSA-2026:13274) vendor-advisory

access.redhat.com/security/cve/CVE-2026-3832 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2445762 (RHBZ#2445762) issue-tracking

gitlab.com/gnutls/gnutls/-/issues/1801

cve.org (CVE-2026-3832)

nvd.nist.gov (CVE-2026-3832)

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