{"id":"CVE-2026-126869","kind":"vulnerability","aliases":["CVE-2026-126869"],"related":[],"title":"Chrome: use-after-free in Frames lets a crafted page run code","description":"Use after free in Frames in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)","summary":"A use-after-free bug in the Frames component of Google Chrome before 157.0.8103.78 can be triggered by a crafted HTML page. A remote attacker who gets a user to load that page can execute arbitrary code inside the browser sandbox.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","chromium-embedders","end-users","runtime"],"not_affected_if":["chrome-up-to-date"],"how_to_check":"- Check the installed Chrome version at chrome://settings/help or with `google-chrome --version`\n- Confirm whether any managed or embedded Chromium builds in use are older than `157.0.8103.78`","fix":"- Google Chrome: move to `157.0.8103.78` or later","status":"open","published_at":"2026-11-11T23:17:15+00:00","first_seen_at":"2026-11-11T23:29:37+00:00","triaged_at":"2026-11-11T23:33:21+00:00","updated_at":"2026-11-11T23:33:21+00:00","category":"runtime","confidence":0.8,"triage":{"at":"2026-11-11T23:33:21Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.78` or later","reach":"internet","title":"Chrome: use-after-free in Frames lets a crafted page run code","impact":"high","summary":"A use-after-free bug in the Frames component of Google Chrome before 157.0.8103.78 can be triggered by a crafted HTML page. A remote attacker who gets a user to load that page can execute arbitrary code inside the browser sandbox.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browsers","end-users","chromium-embedders"],"confidence":0.8,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox via a crafted page.","analyst_note":"","how_to_check":"- Check the installed Chrome version at chrome://settings/help or with `google-chrome --version`\n- Confirm whether any managed or embedded Chromium builds in use are older than `157.0.8103.78`","plain_action":"Update Google Chrome to version 157.0.8103.78 or later through its built-in update check.","product_name":"","needs_analyst":false,"not_affected_if":["chrome-up-to-date"],"who_is_affected":"Anyone running Google Chrome older than 157.0.8103.78 who opens a malicious or compromised web page. Managed fleets and embedded Chromium builds may ship their own versions and need checking separately. Users on current Chrome are not affected.","user_interaction":"yes","product_ecosystem":"","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000722,"input_tokens":4529,"output_tokens":538,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-126869':16A,19A '-2026':15A,18A '157.0.8103.78':43B,81C 'allow':82C 'arbitrari':65B,88C 'attack':54B,85C 'browser':20B,69B 'bug':34B 'chrome':1A,21B,41B,78C 'chromium':23B,98C 'chromium-embedd':22B 'code':13A,66B,89C 'compon':38B 'craft':10A,49B,95C 'cve':14A,17A 'embedd':24B 'end':26B 'end-us':25B 'execut':64B,87C 'frame':7A,37B,75C 'free':5A,33B,73C 'get':56B 'googl':40B,77C 'high':101C 'html':50B,96C 'insid':67B,90C 'let':8A 'load':60B 'page':11A,51B,62B,97C 'prior':79C 'remot':53B,84C 'run':12A 'runtim':28B 'sandbox':70B,92C 'secur':99C 'sever':100C 'trigger':46B 'use':3A,31B,71C 'use-after-fre':2A,30B 'user':27B,58B 'via':93C","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome older than 157.0.8103.78 who opens a malicious or compromised web page. Managed fleets and embedded Chromium builds may ship their own versions and need checking separately. Users on current Chrome are not affected.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 157.0.8103.78 or later through its built-in update check.","pkeys":[],"ptokens":[],"labels":["browsers","chrome","chromiumembedders","endusers","high","runtime"],"campaign_type":null,"search_a":"'-126869':16A,19A '-2026':15A,18A 'chrome':1A 'code':13A 'craft':10A 'cve':14A,17A 'frame':7A 'free':5A 'let':8A 'page':11A 'run':12A 'use':3A 'use-after-fre':2A","search_b":"'157.0.8103.78':43B 'arbitrari':65B 'attack':54B 'browser':20B,69B 'bug':34B 'chrome':21B,41B 'chromium':23B 'chromium-embedd':22B 'code':66B 'compon':38B 'craft':49B 'embedd':24B 'end':26B 'end-us':25B 'execut':64B 'frame':37B 'free':33B 'get':56B 'googl':40B 'html':50B 'insid':67B 'load':60B 'page':51B,62B 'remot':53B 'runtim':28B 'sandbox':70B 'trigger':46B 'use':31B 'use-after-fre':30B 'user':27B,58B","search_c":"'157.0.8103.78':81C 'allow':82C 'arbitrari':88C 'attack':85C 'chrome':78C 'chromium':98C 'code':89C 'craft':95C 'execut':87C 'frame':75C 'free':73C 'googl':77C 'high':101C 'html':96C 'insid':90C 'page':97C 'prior':79C 'remot':84C 'sandbox':92C 'secur':99C 'sever':100C 'use':71C 'via':93C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-11T23:17:15+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-126869","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126869","severity":null,"published_at":"2026-11-11T23:17:15+00:00","modified_at":"2026-11-11T23:17:15+00:00","first_seen_at":"2026-11-11T23:29:37+00:00","fetched_at":"2026-11-11T23:29:37+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"}