{"action":"Upgrade erlang to 1:27.3.4.12+dfsg-1 or later.","affected":[{"fixed":"1:27.3.4.12+dfsg-1","introduced":"0"}],"component":"erlang","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:27.3.4.12+dfsg-1"],"id":"tcs_01M5NS17C4CDB252YAMYJK10MC","modified_at":"2026-10-01T03:03:12.080488143Z","published_at":"2026-05-27T17:16:36.030Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-42790","https://security-tracker.debian.org/tracker/CVE-2026-42790"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-42790#Debian:14/erlang","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-42790"}],"summary":"Improper Certificate Validation vulnerability in Erlang OTP public_key (pubkey_cert and public_key modules) allows a DNS nameConstraints bypass via subject CommonName fallback in TLS hostname verifica"}