{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"golang-go.crypto","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":[],"id":"tcs_01M5NRWNP5MS2CYW9D11C7KBMK","modified_at":"2026-10-01T03:03:11.289466123Z","published_at":"2026-05-22T04:16:22.553Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-39831","https://security-tracker.debian.org/tracker/CVE-2026-39831"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-39831","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-39831"}],"summary":"The Verify() method for FIDO/U2F security key types (sk-ecdsa-sha2-nistp256@openssh.com, sk-ssh-ed25519@openssh.com) did not check the User Presence flag. Signatures generated without physical touch w"}