{"id":"CVE-2026-126886","kind":"vulnerability","aliases":["CVE-2026-126886"],"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 lets a remote attacker run arbitrary code inside the browser sandbox through a crafted HTML page. Chromium rates the flaw High severity.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","desktop","other"],"not_affected_if":["patched-chrome"],"how_to_check":"- Open Chrome and check the installed version under Settings > About Chrome, or run `chrome --version` where the binary is on the path\n- Confirm whether the version is below `157.0.8103.78`","fix":"- Google Chrome: move to `157.0.8103.78` or later","status":"open","published_at":"2026-11-11T23:17:17+00:00","first_seen_at":"2026-11-11T23:29:38+00:00","triaged_at":"2026-11-11T23:32:05+00:00","updated_at":"2026-11-11T23:32:05+00:00","category":"other","confidence":0.7,"triage":{"at":"2026-11-11T23:32:05Z","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 lets a remote attacker run arbitrary code inside the browser sandbox through a crafted HTML page. Chromium rates the flaw High severity.","audience":"everyone","category":"other","nicknames":[],"who_cares":["chrome","browsers","desktop"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Code runs inside the browser sandbox after a visit to a crafted page.","analyst_note":"","how_to_check":"- Open Chrome and check the installed version under Settings > About Chrome, or run `chrome --version` where the binary is on the path\n- Confirm whether the version is below `157.0.8103.78`","plain_action":"Update Google Chrome to version 157.0.8103.78 or later: Chrome menu > Help > About Google Chrome.","product_name":"","needs_analyst":false,"not_affected_if":["patched-chrome"],"who_is_affected":"Anyone running Google Chrome before 157.0.8103.78 who opens untrusted web pages is exposed, because the bug is triggered by a crafted HTML page. Managed fleets that run Chrome on employee machines are exposed in the same way. Systems that do not run Chrome, or run a patched build, can skip it.","user_interaction":"yes","product_ecosystem":"","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000739,"input_tokens":4529,"output_tokens":572,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-126886':16A,19A '-2026':15A,18A '157.0.8103.78':37B,70C 'allow':71C 'arbitrari':43B,77C 'attack':41B,74C 'browser':20B,47B 'bug':28B 'chrome':1A,21B,35B,67C 'chromium':54B,87C 'code':13A,44B,78C 'compon':32B 'craft':10A,51B,84C 'cve':14A,17A 'desktop':22B 'execut':76C 'flaw':57B 'frame':7A,31B,64C 'free':5A,27B,62C 'googl':34B,66C 'high':58B,90C 'html':52B,85C 'insid':45B,79C 'let':8A,38B 'page':11A,53B,86C 'prior':68C 'rate':55B 'remot':40B,73C 'run':12A,42B 'sandbox':48B,81C 'secur':88C 'sever':59B,89C 'use':3A,25B,60C 'use-after-fre':2A,24B 'via':82C","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome before 157.0.8103.78 who opens untrusted web pages is exposed, because the bug is triggered by a crafted HTML page. Managed fleets that run Chrome on employee machines are exposed in the same way. Systems that do not run Chrome, or run a patched build, can skip it.","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: Chrome menu > Help > About Google Chrome.","pkeys":[],"ptokens":[],"labels":["browsers","chrome","desktop","high","other"],"campaign_type":null,"search_a":"'-126886':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':37B 'arbitrari':43B 'attack':41B 'browser':20B,47B 'bug':28B 'chrome':21B,35B 'chromium':54B 'code':44B 'compon':32B 'craft':51B 'desktop':22B 'flaw':57B 'frame':31B 'free':27B 'googl':34B 'high':58B 'html':52B 'insid':45B 'let':38B 'page':53B 'rate':55B 'remot':40B 'run':42B 'sandbox':48B 'sever':59B 'use':25B 'use-after-fre':24B","search_c":"'157.0.8103.78':70C 'allow':71C 'arbitrari':77C 'attack':74C 'chrome':67C 'chromium':87C 'code':78C 'craft':84C 'execut':76C 'frame':64C 'free':62C 'googl':66C 'high':90C 'html':85C 'insid':79C 'page':86C 'prior':68C 'remot':73C 'sandbox':81C 'secur':88C 'sever':89C 'use':60C 'via':82C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-11T23:17:17+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-126886","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126886","severity":null,"published_at":"2026-11-11T23:17:17+00:00","modified_at":"2026-11-11T23:17:17+00:00","first_seen_at":"2026-11-11T23:29:38+00:00","fetched_at":"2026-11-11T23:29:38+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"}