{"action":"Upgrade firefox-esr to 140.7.0esr-1~deb13u1 or later.","affected":[{"fixed":"140.7.0esr-1~deb13u1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["140.7.0esr-1~deb13u1"],"id":"tcs_01M5NPFJZKKTFP82K7RWH91WWR","modified_at":"2026-10-01T03:00:14.329369781Z","published_at":"2026-01-13T14:16:39.240Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-0887","https://security-tracker.debian.org/tracker/CVE-2026-0887"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-0887#Debian:13/firefox-esr","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-0887"}],"summary":"Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7."}