{"id":"CVE-2026-126907","kind":"vulnerability","aliases":["CVE-2026-126907"],"related":[],"title":"Chrome on Windows: media flaw lets a compromised renderer read sandbox memory","description":"Uninitialized resource in Media in Google Chrome on on Windows prior to 157.0.8103.78 allowed a remote attacker who had compromised the renderer process to potentially read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)","summary":"An uninitialized resource in Chrome's Media component on Windows can be abused by an attacker who has already compromised the renderer process via a crafted HTML page. The attacker could read memory outside the browser sandbox.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Google Chrome","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["browser","chrome","other","windows"],"not_affected_if":["chrome-updated"],"how_to_check":"- Check the installed Chrome version in the browser's About page or with `chrome://version`; versions before `157.0.8103.78` are affected.","fix":"- Google Chrome on Windows: move to `157.0.8103.78` or later.","status":"open","published_at":"2026-11-11T23:17:20+00:00","first_seen_at":"2026-11-11T23:29:40+00:00","triaged_at":"2026-11-11T23:31:42+00:00","updated_at":"2026-11-11T23:31:42+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-11-11T23:31:42Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome on Windows: move to `157.0.8103.78` or later.","reach":"internet","title":"Chrome on Windows: media flaw lets a compromised renderer read sandbox memory","impact":"medium","summary":"An uninitialized resource in Chrome's Media component on Windows can be abused by an attacker who has already compromised the renderer process via a crafted HTML page. The attacker could read memory outside the browser sandbox.","audience":"everyone","category":"other","nicknames":[],"who_cares":["chrome","windows","browser"],"confidence":0.6,"fix_status":"available","needs_auth":"no","worst_case":"Attacker reads memory outside the sandbox after a renderer compromise.","analyst_note":"","how_to_check":"- Check the installed Chrome version in the browser's About page or with `chrome://version`; versions before `157.0.8103.78` are affected.","plain_action":"Update Google Chrome on your Windows computer to version 157.0.8103.78 or later.","product_name":"Google Chrome","needs_analyst":false,"not_affected_if":["chrome-updated"],"who_is_affected":"Windows users of Google Chrome running a version before 157.0.8103.78. The attack requires a separate renderer compromise first, and the flaw is triggered by a crafted HTML page.","user_interaction":"yes","product_ecosystem":"vendor","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000707,"input_tokens":4545,"output_tokens":505,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-126907':15A,18A '-2026':14A,17A '157.0.8103.78':74C 'abus':37B 'allow':75C 'alreadi':43B 'attack':40B,54B,78C 'browser':21B,60B 'chrome':1A,20A,22B,29B,68C 'chromium':97C 'compon':32B 'compromis':8A,44B,81C 'could':55B 'craft':50B,94C 'cve':13A,16A 'flaw':5A 'googl':67C 'google':19A 'high':100C 'html':51B,95C 'let':6A 'media':4A,31B,65C 'memori':12A,57B,88C 'outsid':58B,89C 'page':52B,96C 'potenti':86C 'prior':72C 'process':47B,84C 'read':10A,56B,87C 'remot':77C 'render':9A,46B,83C 'resourc':27B,63C 'sandbox':11A,61B,91C 'secur':98C 'sever':99C 'uniniti':26B,62C 'via':48B,92C 'window':3A,24B,34B,71C","nicknames":[],"mitigations":[],"who_affected":"Windows users of Google Chrome running a version before 157.0.8103.78. The attack requires a separate renderer compromise first, and the flaw is triggered by a crafted HTML page.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome on your Windows computer to version 157.0.8103.78 or later.","pkeys":["chrome","googlechrome"],"ptokens":["chrome","google"],"labels":["browser","chrome","high","other","vendor","windows"],"campaign_type":null,"search_a":"'-126907':15A,18A '-2026':14A,17A 'chrome':1A,20A 'compromis':8A 'cve':13A,16A 'flaw':5A 'google':19A 'let':6A 'media':4A 'memori':12A 'read':10A 'render':9A 'sandbox':11A 'window':3A","search_b":"'abus':37B 'alreadi':43B 'attack':40B,54B 'browser':21B,60B 'chrome':22B,29B 'compon':32B 'compromis':44B 'could':55B 'craft':50B 'html':51B 'media':31B 'memori':57B 'outsid':58B 'page':52B 'process':47B 'read':56B 'render':46B 'resourc':27B 'sandbox':61B 'uniniti':26B 'via':48B 'window':24B,34B","search_c":"'157.0.8103.78':74C 'allow':75C 'attack':78C 'chrome':68C 'chromium':97C 'compromis':81C 'craft':94C 'googl':67C 'high':100C 'html':95C 'media':65C 'memori':88C 'outsid':89C 'page':96C 'potenti':86C 'prior':72C 'process':84C 'read':87C 'remot':77C 'render':83C 'resourc':63C 'sandbox':91C 'secur':98C 'sever':99C 'uniniti':62C 'via':92C 'window':71C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-11T23:17:20+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-126907","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126907","severity":null,"published_at":"2026-11-11T23:17:20+00:00","modified_at":"2026-11-11T23:17:20+00:00","first_seen_at":"2026-11-11T23:29:40+00:00","fetched_at":"2026-11-11T23:29:40+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"}