{"action":"Upgrade librewolf to 74.0.1-r0 or later.","affected":[{"fixed":"74.0.1-r0","introduced":"0"}],"component":"librewolf","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.21","exploited":false,"fixed_versions":["74.0.1-r0"],"id":"tcs_01M6GTB7CDZVHSS98BH6YDZEMW","modified_at":"2026-11-03T06:32:37.661140803Z","published_at":"2020-04-24T16:15:13.463Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2020-6820","https://security.alpinelinux.org/vuln/CVE-2020-6820"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2020-6820#Alpine:v3.21/librewolf","url":"https://osv.dev/vulnerability/ALPINE-CVE-2020-6820"}],"summary":"Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunde"}