{"action":"Upgrade thunderbird to 1:140.11.0esr-1 or later.","affected":[{"fixed":"1:140.11.0esr-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:140.11.0esr-1"],"id":"tcs_01M5NW6SVZRP4W5WHTQ8H18DBX","modified_at":"2026-10-15T09:47:44.783677917Z","published_at":"2026-05-19T14:16:50.910Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-8947","https://security-tracker.debian.org/tracker/CVE-2026-8947"],"severity":{"label":"high","score":7.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-8947#Debian:14/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-8947"}],"summary":"Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11."}