{"id":"CVE-2026-124941","kind":"vulnerability","aliases":["CVE-2026-124941"],"related":[],"title":"Firefox: RLBox component flaw leaks information, fixed in version 160","description":"Information disclosure in the Security: RLBox component. This vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.","summary":"Firefox has an information disclosure flaw in its RLBox sandboxing component. The sources do not say what data an attacker could read or how.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Firefox","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["firefox","other"],"not_affected_if":[],"how_to_check":"- Check the Firefox version with Help > About Firefox; the sources do not give a command.","fix":"- Firefox `160` and Firefox ESR `153.7`","status":"open","published_at":"2026-11-10T14:17:28+00:00","first_seen_at":"2026-11-10T14:22:19+00:00","triaged_at":"2026-11-10T14:24:02+00:00","updated_at":"2026-11-10T14:24:02+00:00","category":"other","confidence":0.4,"triage":{"at":"2026-11-10T14:24:02Z","model":"claude-haiku-5-5","output":{"fix":"- Firefox `160` and Firefox ESR `153.7`\n- unknown","reach":"unknown","title":"Firefox: RLBox component flaw leaks information, fixed in version 160","impact":"low","summary":"Firefox has an information disclosure flaw in its RLBox sandboxing component. The sources do not say what data an attacker could read or how.","audience":"everyone","category":"other","nicknames":[],"who_cares":["firefox"],"confidence":0.4,"fix_status":"available","needs_auth":"unknown","worst_case":"unknown information disclosure from the browser sandbox component","analyst_note":"Find the Mozilla advisory for CVE-2026-124941 to confirm what data is exposed and how it is triggered.","how_to_check":"- Check the Firefox version with Help > About Firefox; the sources do not give a command.\n- unknown","plain_action":"Update Firefox to version 160 or Firefox ESR 153.7 through the browser's update menu.","product_name":"Firefox","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000665,"input_tokens":4472,"output_tokens":436,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-124941':13A,16A '-2026':12A,15A '153.7':58C '160':10A,54C 'attack':38B 'compon':3A,29B,47C 'could':39B 'cve':11A,14A 'data':36B 'disclosur':23B,42C 'esr':57C 'firefox':1A,17A,18B,19B,53C,56C 'fix':7A,51C 'flaw':4A,24B 'inform':6A,22B,41C 'leak':5A 'read':40B 'rlbox':2A,27B,46C 'sandbox':28B 'say':34B 'secur':45C 'sourc':31B 'version':9A 'vulner':49C","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":["firefox"],"ptokens":["firefox"],"labels":["firefox","other","unknown","vendor"],"campaign_type":null,"search_a":"'-124941':13A,16A '-2026':12A,15A '160':10A 'compon':3A 'cve':11A,14A 'firefox':1A,17A 'fix':7A 'flaw':4A 'inform':6A 'leak':5A 'rlbox':2A 'version':9A","search_b":"'attack':38B 'compon':29B 'could':39B 'data':36B 'disclosur':23B 'firefox':18B,19B 'flaw':24B 'inform':22B 'read':40B 'rlbox':27B 'sandbox':28B 'say':34B 'sourc':31B","search_c":"'153.7':58C '160':54C 'compon':47C 'disclosur':42C 'esr':57C 'firefox':53C,56C 'fix':51C 'inform':41C 'rlbox':46C 'secur':45C 'vulner':49C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T14:17:28+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-124941","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124941","severity":null,"published_at":"2026-11-10T14:17:28+00:00","modified_at":"2026-11-10T14:17:28+00:00","first_seen_at":"2026-11-10T14:22:19+00:00","fetched_at":"2026-11-10T14:22:19+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"}