{"id":"CVE-2026-118327","kind":"vulnerability","aliases":["CVE-2026-118327"],"related":[],"title":"Chrome: memory corruption in Media lets crafted page run code in sandbox","description":"Memory corruption in Media in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)","summary":"A memory corruption bug in the Media component of Google Chrome before 156.0.8078.73 can be triggered by a crafted HTML page. A remote attacker can potentially execute arbitrary code inside the browser sandbox.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","desktop","managed-endpoints","runtime"],"not_affected_if":["chrome-updated"],"how_to_check":"- Open chrome://settings/help or run the browser's About page and compare the version with `156.0.8078.73`\n- On managed fleets, query the installed Chrome version from your device management tool","fix":"- Update Google Chrome to `156.0.8078.73` or later\n- Relaunch the browser after the update so the new build is active","status":"open","published_at":"2026-10-27T23:17:00+00:00","first_seen_at":"2026-10-27T23:29:43+00:00","triaged_at":"2026-10-27T23:31:56+00:00","updated_at":"2026-10-27T23:31:56+00:00","category":"runtime","confidence":0.8,"triage":{"at":"2026-10-27T23:31:56Z","model":"claude-haiku-5-5","output":{"fix":"- Update Google Chrome to `156.0.8078.73` or later\n- Relaunch the browser after the update so the new build is active","reach":"internet","title":"Chrome: memory corruption in Media lets crafted page run code in sandbox","impact":"high","summary":"A memory corruption bug in the Media component of Google Chrome before 156.0.8078.73 can be triggered by a crafted HTML page. A remote attacker can potentially execute arbitrary code inside the browser sandbox.","category":"runtime","nicknames":[],"who_cares":["chrome","desktop","browser","managed-endpoints"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after a victim loads a page.","analyst_note":"","how_to_check":"- Open chrome://settings/help or run the browser's About page and compare the version with `156.0.8078.73`\n- On managed fleets, query the installed Chrome version from your device management tool","needs_analyst":false,"not_affected_if":["chrome-updated"],"who_is_affected":"Any machine running Google Chrome before 156.0.8078.73 is exposed when a user visits a page an attacker controls. Organizations that manage browsers centrally should check every desktop fleet, since a victim only needs to load the page. Systems with Chrome already updated to 156.0.8078.73 or later are not affected by this issue.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000589,"input_tokens":3295,"output_tokens":518,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-118327':15A,18A '-2026':14A,17A '156.0.8078.73':38B,68C 'allow':69C 'arbitrari':53B,76C 'attack':49B,72C 'browser':19B,57B 'bug':29B 'chrome':1A,20B,36B,65C 'chromium':86C 'code':10A,54B,77C 'compon':33B 'corrupt':3A,28B,60C 'craft':7A,44B,83C 'cve':13A,16A 'desktop':21B 'endpoint':24B 'execut':52B,75C 'googl':35B,64C 'high':89C 'html':45B,84C 'insid':55B,78C 'let':6A 'manag':23B 'managed-endpoint':22B 'media':5A,32B,62C 'memori':2A,27B,59C 'page':8A,46B,85C 'potenti':51B,74C 'prior':66C 'remot':48B,71C 'run':9A 'runtim':25B 'sandbox':12A,58B,80C 'secur':87C 'sever':88C 'trigger':41B 'via':81C","nicknames":[],"mitigations":[],"who_affected":"Any machine running Google Chrome before 156.0.8078.73 is exposed when a user visits a page an attacker controls. Organizations that manage browsers centrally should check every desktop fleet, since a victim only needs to load the page. Systems with Chrome already updated to 156.0.8078.73 or later are not affected by this issue.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T23:17:00+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-118327","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118327","severity":null,"published_at":"2026-10-27T23:17:00+00:00","modified_at":"2026-10-27T23:17:00+00:00","first_seen_at":"2026-10-27T23:29:43+00:00","fetched_at":"2026-10-27T23:29:43+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"}