{"schema":"threatline.record/2","record":{"id":"CVE-2026-109705","aliases":[],"summary":"Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component","details":"Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.","categories":["Applications & CMS"],"product":"Firefox","vendor":"Mozilla","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109705","source_modified_at":"2026-10-13T18:16:46.734Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Firefox","vendor":"Mozilla","versions":[{"status":"unaffected","version":"153.5","lessThanOrEqual":"153.*","versionType":"rpm"},{"status":"unaffected","version":"158","lessThanOrEqual":"*","versionType":"rpm"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109705","source_modified_at":"2026-10-13T18:16:46.734Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Thunderbird","vendor":"Mozilla","versions":[{"status":"unaffected","version":"153.5","lessThanOrEqual":"153.*","versionType":"rpm"},{"status":"unaffected","version":"158","lessThanOrEqual":"*","versionType":"rpm"}],"defaultStatus":null}],"fixed_versions":[],"cvss":9.6,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00311,"percentile":0.22798,"score_date":"2026-10-23"},"published_at":"2026-10-13T12:29:21.887Z","modified_at":"2026-10-13T18:16:46.734Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-109705","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-13T18:16:46.734Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-109705","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2040905"},{"source":"CVE List","url":"https://www.mozilla.org/security/advisories/mfsa2026-106/"},{"source":"CVE List","url":"https://www.mozilla.org/security/advisories/mfsa2026-108/"},{"source":"CVE List","url":"https://www.mozilla.org/security/advisories/mfsa2026-109/"},{"source":"CVE List","url":"https://www.mozilla.org/security/advisories/mfsa2026-110/"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-10-13T14:14:35.331154Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-13T18:16:46.734Z","content_hash":"605f261ccfba2d53afa6db5f2385366d58553ff7ef38fd6d2cecd059243b5cb3"}}