The Quarterly Threat Landscape Report is out. See what attackers are targeting now.Read report
A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name (SAN) could cause the validation process to incorrectly fall back to checking the Common Name (CN) field. This could allow a remote attacker to bypass proper certificate validation, potentially leading to spoofing or man-in-the-middle attacks.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade gnutls-c++Upgrade gnutls-develUpgrade gnutlsUpgrade gnutls-utilsUpgrade gnutls-dane | May 27, 2026 | May 26, 2026 |
| Alpine Linux | — | Upgrade gnutls | May 28, 2026 | May 26, 2026 |
| Amazon_linux_2023 | — | Upgrade gnutls-debugsourceUpgrade gnutls-utils-debuginfoUpgrade gnutls-c++Upgrade gnutls-utilsUpgrade gnutls-c++-debuginfoUpgrade gnutls-dane-debuginfoUpgrade gnutls-debuginfoUpgrade gnutls-develUpgrade gnutlsUpgrade gnutls-dane | Jun 9, 2026 | May 26, 2026 |
| Debian | — | Upgrade gnutls28 | May 20, 2026 | May 20, 2026 |
| Oracle_linux | — | Upgrade gnutls-develUpgrade gnutls-fipsUpgrade gnutlsUpgrade gnutls-daneUpgrade gnutls-c++Upgrade gnutls-utils | Jun 4, 2026 | May 26, 2026 |
| Redhat Openshift | — | Upgrade ose-rhel-coreos | Aug 10, 2026 | Apr 29, 2026 |
| Redhat_linux | — | Upgrade gnutls-daneUpgrade gnutls-utilsNo solution existsUpgrade gnutls-debugsourceUpgrade gnutlsUpgrade gnutls-debuginfoUpgrade gnutls-utils-debuginfoUpgrade gnutls-c++Upgrade gnutls-develUpgrade gnutls-dane-debuginfoUpgrade gnutls-c++-debuginfoUpgrade gnutls-fips | May 28, 2026 | Apr 29, 2026 |
| Rocky_linux | — | Upgrade gnutls-c++Upgrade gnutls-utilsUpgrade gnutls-dane-debuginfoUpgrade gnutls-daneUpgrade gnutls-debugsourceUpgrade gnutls-debuginfoUpgrade gnutls-utils-debuginfoUpgrade gnutlsUpgrade gnutls-c++-debuginfoUpgrade gnutls-fipsUpgrade gnutls-devel | Jun 1, 2026 | May 29, 2026 |
| Ubuntu | — | Upgrade libgnutls30 (Ubuntu Pro)Upgrade libgnutls30Upgrade libgnutls30t64 | May 25, 2026 | May 20, 2026 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub