{"action":"Upgrade zsh to 5.8.1-1 or later.","affected":[{"fixed":"5.8.1-1","introduced":"0"}],"component":"zsh","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["5.8.1-1"],"id":"tcs_01M5NG2SWBCMWXR7TN6AXA0CDB","modified_at":"2026-10-23T18:04:56.888554637Z","published_at":"2022-02-14T12:15:15.750Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-45444","https://security-tracker.debian.org/tracker/CVE-2021-45444"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-45444#Debian:13/zsh","url":"https://osv.dev/vulnerability/DEBIAN-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"}