{"action":"Upgrade golang-1.27 to 1.27~rc2-1 or later.","affected":[{"fixed":"1.27~rc2-1","introduced":"0"}],"component":"golang-1.27","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.27~rc2-1"],"id":"tcs_01M5NS0ST1JV21MBGCBYJ35JQQ","modified_at":"2026-10-26T11:47:34.928930559Z","published_at":"2026-07-08T17:17:21.497Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-42505","https://security-tracker.debian.org/tracker/CVE-2026-42505"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-42505#Debian:14/golang-1.27","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-42505"}],"summary":"Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello."}