{"action":"Upgrade libmspack to 0.8_alpha-r0 or later.","affected":[{"fixed":"0.8_alpha-r0","introduced":"0"}],"component":"libmspack","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.6","exploited":false,"fixed_versions":["0.8_alpha-r0"],"id":"tcs_01M5NAJNNCV2J2PT5H37A0EEYN","modified_at":"2026-10-23T17:23:45.531601455Z","published_at":"2018-10-23T02:29:00.700Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2018-18586","https://security.alpinelinux.org/vuln/CVE-2018-18586"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2018-18586#Alpine:v3.6/libmspack","url":"https://osv.dev/vulnerability/ALPINE-CVE-2018-18586"}],"summary":"chmextract.c in the chmextract sample program, as distributed with libmspack before 0.8alpha, does not protect against absolute/relative pathnames in CHM files, leading to Directory Traversal. NOTE: t"}