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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade gnutls-utilsUpgrade gnutlsUpgrade gnutls-c++Upgrade gnutls-daneUpgrade gnutls-devel | Jul 2, 2026 | May 26, 2026 |
| Alpine Linux | — | Upgrade gnutls | May 4, 2026 | Apr 30, 2026 |
| Debian | — | Upgrade gnutls28 | Jul 23, 2026 | Jul 23, 2026 |
| Redhat_linux | — | Upgrade gnutls-develUpgrade gnutls-utilsUpgrade gnutls-utils-debuginfoNo solution existsUpgrade gnutlsUpgrade gnutls-debuginfoUpgrade gnutls-c++-debuginfoUpgrade gnutls-debugsourceUpgrade gnutls-c++Upgrade gnutls-daneUpgrade gnutls-dane-debuginfoUpgrade gnutls-fips | Jun 3, 2026 | Apr 30, 2026 |
| Rocky_linux | — | Upgrade gnutls-develUpgrade gnutlsUpgrade gnutls-daneUpgrade gnutls-debugsourceUpgrade gnutls-c++-debuginfoUpgrade gnutls-fipsUpgrade gnutls-debuginfoUpgrade gnutls-utils-debuginfoUpgrade gnutls-c++Upgrade gnutls-utilsUpgrade gnutls-dane-debuginfo | Jun 4, 2026 | Jun 2, 2026 |
| Suse | — | Upgrade gnutlsUpgrade libgnutls30Upgrade libgnutls-devel-docUpgrade libgnutlsxx30Upgrade libgnutls-develUpgrade libgnutlsxx-devel | May 28, 2026 | May 18, 2026 |
| Ubuntu | — | Upgrade libgnutls30Upgrade libgnutls30t64 | May 25, 2026 | May 20, 2026 |
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