{"action":"Upgrade gnutls28 to 3.8.9-3+deb13u4 or later.","affected":[{"fixed":"3.8.9-3+deb13u4","introduced":"0"}],"component":"gnutls28","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["3.8.9-3+deb13u4"],"id":"tcs_01M5NRZSW341J8P0KKEXBQ1VB8","modified_at":"2026-10-15T09:47:34.418985344Z","published_at":"2026-05-26T22:16:42.050Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-42013","https://security-tracker.debian.org/tracker/CVE-2026-42013"],"severity":{"label":"high","score":8.2},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-42013#Debian:13/gnutls28","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-42013"}],"summary":"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"}