{"action":"Upgrade firefox to 95.0-r0 or later.","affected":[{"fixed":"95.0-r0","introduced":"0"}],"component":"firefox","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.23","exploited":false,"fixed_versions":["95.0-r0"],"id":"tcs_01M6GWCKFWAETEG01BJ7NB314W","modified_at":"2026-11-03T06:32:41.555436670Z","published_at":"2021-12-08T22:15:09.890Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-43542","https://security.alpinelinux.org/vuln/CVE-2021-43542"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-43542#Alpine:v3.23/firefox","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-43542"}],"summary":"Using XMLHttpRequest, an attacker could have identified installed applications by probing error messages for loading external protocols. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR <"}