{"schema":"threatline.record/2","record":{"id":"CVE-2026-100793","aliases":[],"summary":"JIT miscompilation in the JavaScript Engine component","details":"JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.","categories":["Unclassified"],"product":"Thunderbird","vendor":"Mozilla","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100793","source_modified_at":"2026-10-01T14:52:34.839Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Thunderbird","vendor":"Mozilla","versions":[{"status":"unaffected","version":"157","lessThanOrEqual":"*","versionType":"rpm"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100793","source_modified_at":"2026-10-01T14:52:34.839Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Firefox","vendor":"Mozilla","versions":[{"status":"unaffected","version":"157","lessThanOrEqual":"*","versionType":"rpm"}],"defaultStatus":null}],"fixed_versions":[],"cvss":6.5,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00269,"percentile":0.18086,"score_date":"2026-10-23"},"published_at":"2026-09-29T12:36:14.014Z","modified_at":"2026-10-01T14:52:34.839Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-100793","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-01T14:52:34.839Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-100793","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=2073268"},{"source":"CVE List","url":"https://www.mozilla.org/security/advisories/mfsa2026-101/"},{"source":"CVE List","url":"https://www.mozilla.org/security/advisories/mfsa2026-97/"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-01T14:52:22.946812Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-01T14:52:34.839Z","content_hash":"51bab52fb9abd0c810778924b2d16a92bd57b7243b02e89e0c70686cf95f96c4"}}