{"id":"CVE-2026-124856","kind":"vulnerability","aliases":["CVE-2026-124856"],"related":[],"title":"Firefox: HTTP networking boundary flaw, fixed in Firefox 160","description":"Incorrect boundary conditions in the Networking: HTTP component. This vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.","summary":"Firefox's HTTP networking component has an incorrect boundary condition, according to the NVD entry. The sources do not say what an attacker can do with it.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","firefox","runtime"],"not_affected_if":["already-on-fixed-version"],"how_to_check":"- Check the installed Firefox version in the About Firefox menu, or `firefox --version` on Linux.\n- Compare it with the fixed releases: Firefox 160 and Firefox ESR 153.7.","fix":"- Firefox: `160`\n- Firefox ESR: `153.7`","status":"open","published_at":"2026-11-10T14:17:17+00:00","first_seen_at":"2026-11-10T14:22:13+00:00","triaged_at":"2026-11-10T14:26:40+00:00","updated_at":"2026-11-10T14:26:40+00:00","category":"runtime","confidence":0.4,"triage":{"at":"2026-11-10T14:26:40Z","model":"claude-haiku-5-5","output":{"fix":"- Firefox: `160`\n- Firefox ESR: `153.7`","reach":"unknown","title":"Firefox: HTTP networking boundary flaw, fixed in Firefox 160","impact":"medium","summary":"Firefox's HTTP networking component has an incorrect boundary condition, according to the NVD entry. The sources do not say what an attacker can do with it.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["firefox","browsers"],"confidence":0.4,"fix_status":"available","needs_auth":"unknown","worst_case":"unknown","analyst_note":"Check the Mozilla security advisory for this CVE to learn the attack impact, reach and whether user interaction is needed.","how_to_check":"- Check the installed Firefox version in the About Firefox menu, or `firefox --version` on Linux.\n- Compare it with the fixed releases: Firefox 160 and Firefox ESR 153.7.","plain_action":"Update Firefox to version 160 or Firefox ESR 153.7 through the browser's update menu.","product_name":"","needs_analyst":true,"not_affected_if":["already-on-fixed-version"],"who_is_affected":"unknown","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000684,"input_tokens":4484,"output_tokens":472,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-124856':12A,15A '-2026':11A,14A '153.7':60C '160':9A,56C 'accord':29B 'attack':41B 'boundari':4A,27B,43C 'browser':16B 'compon':23B,49C 'condit':28B,44C 'cve':10A,13A 'entri':33B 'esr':59C 'firefox':1A,8A,17B,19B,55C,58C 'fix':6A,53C 'flaw':5A 'http':2A,21B,48C 'incorrect':26B,42C 'network':3A,22B,47C 'nvd':32B 'runtim':18B 'say':38B 'sourc':35B 'vulner':51C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Firefox to version 160 or Firefox ESR 153.7 through the browser's update menu.","pkeys":[],"ptokens":[],"labels":["browsers","firefox","runtime","unknown"],"campaign_type":null,"search_a":"'-124856':12A,15A '-2026':11A,14A '160':9A 'boundari':4A 'cve':10A,13A 'firefox':1A,8A 'fix':6A 'flaw':5A 'http':2A 'network':3A","search_b":"'accord':29B 'attack':41B 'boundari':27B 'browser':16B 'compon':23B 'condit':28B 'entri':33B 'firefox':17B,19B 'http':21B 'incorrect':26B 'network':22B 'nvd':32B 'runtim':18B 'say':38B 'sourc':35B","search_c":"'153.7':60C '160':56C 'boundari':43C 'compon':49C 'condit':44C 'esr':59C 'firefox':55C,58C 'fix':53C 'http':48C 'incorrect':42C 'network':47C 'vulner':51C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T14:17:17+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-124856","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124856","severity":null,"published_at":"2026-11-10T14:17:17+00:00","modified_at":"2026-11-10T14:17:17+00:00","first_seen_at":"2026-11-10T14:22:13+00:00","fetched_at":"2026-11-10T14:22:13+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}