{"action":"Upgrade golang-1.26 to 1.26.6-1 or later.","affected":[{"fixed":"1.26.6-1","introduced":"0"}],"component":"golang-1.26","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.26.6-1"],"id":"tcs_01M5NT2EEG9AK2SS88Z5DP9PMS","modified_at":"2026-10-12T11:00:44.663939346Z","published_at":"2026-08-13T22:17:22.677Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-56864","https://security-tracker.debian.org/tracker/CVE-2026-56864"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-56864#Debian:14/golang-1.26","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-56864"}],"summary":"A malicious GOSUMDB was capable of serving arbitrary module content not contained within the transparency log. This attack allows for a coordinating GOPROXY and GOSUMDB to serve a client malicious mod"}