{"action":"Upgrade zsh to 5.8.1-r0 or later.","affected":[{"fixed":"5.8.1-r0","introduced":"0"}],"component":"zsh","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.24","exploited":false,"fixed_versions":["5.8.1-r0"],"id":"tcs_01M5NDJR4FGXTY79FN5M3VGP58","modified_at":"2026-10-23T17:17:56.229196552Z","published_at":"2022-02-14T12:15:15.750Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-45444","https://security.alpinelinux.org/vuln/CVE-2021-45444"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-45444#Alpine:v3.24/zsh","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-45444"}],"summary":"In zsh before 5.8.1, an attacker can achieve code execution if they control a command output inside the prompt, as demonstrated by a %F argument. This occurs because of recursive PROMPT_SUBST expansio"}