{"action":"Upgrade thunderbird to 1:78.7.0-1 or later.","affected":[{"fixed":"1:78.7.0-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1:78.7.0-1"],"id":"tcs_01M5NFF7FD3DDTQ55F2NNGTJ4C","modified_at":"2026-10-23T18:02:52.255783812Z","published_at":"2021-02-26T03:15:13.917Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-23960","https://security-tracker.debian.org/tracker/CVE-2021-23960"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-23960#Debian:13/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-23960"}],"summary":"Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and"}