{"action":"Upgrade thunderbird to 1:78.13.0-1 or later.","affected":[{"fixed":"1:78.13.0-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1:78.13.0-1"],"id":"tcs_01M5NFJV9F1RDBC94CNGRMB7RN","modified_at":"2026-10-23T18:03:59.401415386Z","published_at":"2021-08-17T20:15:08.013Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-29988","https://security-tracker.debian.org/tracker/CVE-2021-29988"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-29988#Debian:12/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-29988"}],"summary":"Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thu"}