{"action":"Upgrade socat to 1.8.1.2-r0 or later.","affected":[{"fixed":"1.8.1.2-r0","introduced":"1.8.0.0"}],"component":"socat","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.21","exploited":false,"fixed_versions":["1.8.1.2-r0"],"id":"tcs_01M5NFVVR3EE2YFW8FH7R8G309","modified_at":"2026-10-01T02:17:49.353701218Z","published_at":"2026-06-25T17:17:01.967Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2026-56123","https://security.alpinelinux.org/vuln/CVE-2026-56123"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2026-56123","url":"https://osv.dev/vulnerability/ALPINE-CVE-2026-56123"}],"summary":"socat versions 1.8.0.0 through 1.8.1.1 contain a heap-based buffer overflow vulnerability that allows a malicious SOCKS5 proxy server to overwrite adjacent heap memory by exploiting a sign-extension f"}