{"action":"Upgrade firefox-esr to 78.6.0esr-1 or later.","affected":[{"fixed":"78.6.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["78.6.0esr-1"],"id":"tcs_01M5NEXTYFG4QM862HD7JKK1A0","modified_at":"2026-09-11T11:02:43.999342044Z","published_at":"2021-01-07T14:15:12.297Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-26978","https://security-tracker.debian.org/tracker/CVE-2020-26978"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-26978","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-26978"}],"summary":"Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal network's hosts as well as services running on the user's local machine. This vulnerabil"}