{"action":"Upgrade mercurial to 4.9-r0 or later.","affected":[{"fixed":"4.9-r0","introduced":"0"}],"component":"mercurial","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.13","exploited":false,"fixed_versions":["4.9-r0"],"id":"tcs_01M5NBR5PRZDAMVN21RT0342YF","modified_at":"2026-09-21T06:17:52.521319712Z","published_at":"2019-04-22T16:29:01.913Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2019-3902","https://security.alpinelinux.org/vuln/CVE-2019-3902"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2019-3902#Alpine:v3.13/mercurial","url":"https://osv.dev/vulnerability/ALPINE-CVE-2019-3902"}],"summary":"A flaw was found in Mercurial before 4.9. It was possible to use symlinks and subrepositories to defeat Mercurial's path-checking logic and write files outside a repository."}