{"action":"Upgrade firefox-esr to 153.6.0esr-1~deb12u2 or later.","affected":[{"fixed":"153.6.0esr-1~deb12u2","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["153.6.0esr-1~deb12u2"],"id":"tcs_01M5ZTT6T6M9X2WVE68VAYJMN8","modified_at":"2026-11-02T09:00:21.497768324Z","published_at":"2026-10-27T14:16:51.390Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-117954","https://security-tracker.debian.org/tracker/CVE-2026-117954"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-117954","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-117954"}],"summary":"Use-after-free in the Layout: Positioned component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6."}