{"id":"CVE-2026-121214","kind":"vulnerability","aliases":["CVE-2026-121214"],"related":[],"title":"Chrome: use-after-free in Passwords lets a web page run code","description":"Use after free in Passwords in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)","summary":"A memory bug in the Passwords component of Google Chrome, before version 157.0.8103.38, lets a crafted HTML page trigger a use-after-free. Per the description, an attacker could potentially execute arbitrary code outside the browser sandbox.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","desktop","linux","macos","runtime","windows"],"not_affected_if":["chrome-157.0.8103.38-or-later"],"how_to_check":"- Check the installed Chrome version in Chrome's About page (Settings > About Chrome) or with the platform's version query.\n- Compare the result against `157.0.8103.38`; anything older is in the stated range.","fix":"- Google Chrome: move to `157.0.8103.38` or later.","status":"open","published_at":"2026-11-03T21:17:30+00:00","first_seen_at":"2026-11-03T21:19:27+00:00","triaged_at":"2026-11-03T21:22:37+00:00","updated_at":"2026-11-03T21:22:37+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-11-03T21:22:37Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.38` or later.","reach":"internet","title":"Chrome: use-after-free in Passwords lets a web page run code","impact":"high","summary":"A memory bug in the Passwords component of Google Chrome, before version 157.0.8103.38, lets a crafted HTML page trigger a use-after-free. Per the description, an attacker could potentially execute arbitrary code outside the browser sandbox.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browser","desktop","windows","macos","linux"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Code runs outside the browser sandbox after visiting a crafted page.","analyst_note":"Confirm the fixed version against the Chrome stable release notes and check whether other Chromium browsers shipped the same fix; the NVD entry lacks a CVSS score.","how_to_check":"- Check the installed Chrome version in Chrome's About page (Settings > About Chrome) or with the platform's version query.\n- Compare the result against `157.0.8103.38`; anything older is in the stated range.","plain_action":"Update Google Chrome to version 157.0.8103.38 or later: Settings > About Chrome.","needs_analyst":true,"not_affected_if":["chrome-157.0.8103.38-or-later"],"who_is_affected":"Any device running Google Chrome before 157.0.8103.38 that opens untrusted web pages is in scope. The sources describe a crafted HTML page as the trigger, so no account is needed, but the exact conditions for exploitation beyond the description are unknown. Chromium-based browsers that pick up the same fix may also be affected depending on their build.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.00073,"input_tokens":4103,"output_tokens":640,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121214':16A,19A '-2026':15A,18A '157.0.8103.38':39B,75C 'allow':76C 'arbitrari':59B,83C 'attack':55B,79C 'browser':20B,63B 'bug':29B 'chrome':1A,21B,36B,72C 'chromium':93C 'code':13A,60B,84C 'compon':33B 'could':56B 'craft':42B,90C 'cve':14A,17A 'descript':53B 'desktop':22B 'execut':58B,82C 'free':5A,50B,67C 'googl':35B,71C 'high':96C 'html':43B,91C 'let':8A,40B 'linux':23B 'maco':24B 'memori':28B 'outsid':61B,85C 'page':11A,44B,92C 'password':7A,32B,69C 'per':51B 'potenti':57B,81C 'prior':73C 'remot':78C 'run':12A 'runtim':25B 'sandbox':64B,87C 'secur':94C 'sever':95C 'trigger':45B 'use':3A,48B,65C 'use-after-fre':2A,47B 'version':38B 'via':88C 'web':10A 'window':26B","nicknames":[],"mitigations":[],"who_affected":"Any device running Google Chrome before 157.0.8103.38 that opens untrusted web pages is in scope. The sources describe a crafted HTML page as the trigger, so no account is needed, but the exact conditions for exploitation beyond the description are unknown. Chromium-based browsers that pick up the same fix may also be affected depending on their build.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 157.0.8103.38 or later: Settings > About Chrome.","pkeys":[],"ptokens":[],"labels":["browser","chrome","desktop","high","linux","macos","runtime","windows"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:30+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121214","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121214","severity":null,"published_at":"2026-11-03T21:17:30+00:00","modified_at":"2026-11-03T21:17:30+00:00","first_seen_at":"2026-11-03T21:19:27+00:00","fetched_at":"2026-11-03T21:19:27+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}