{"action":"Upgrade wolfssl to 5.7.2-0.1+deb13u2 or later.","affected":[{"fixed":"5.7.2-0.1+deb13u2","introduced":"0"}],"component":"wolfssl","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["5.7.2-0.1+deb13u2"],"id":"tcs_01M5NT9MRTJY4RJNCGJAAKM3C6","modified_at":"2026-10-01T03:03:29.249612948Z","published_at":"2026-06-25T22:17:03.010Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-6331","https://security-tracker.debian.org/tracker/CVE-2026-6331"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-6331#Debian:13/wolfssl","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-6331"}],"summary":"HMAC zero-length tag forgery in EVP_DigestVerifyFinal, where a zero-length tag could be accepted as valid during HMAC verification. In the OpenSSL-compatibility HMAC verify path the supplied signature"}