{"id":"CVE-2026-118317","kind":"vulnerability","aliases":["CVE-2026-118317"],"related":[],"title":"Google Chrome: HTML memory corruption lets a crafted page run code","description":"Memory corruption in HTML 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 Chrome's HTML handling, fixed in version 156.0.8078.73, lets a remote attacker run arbitrary code inside the browser sandbox through a crafted web page. Chromium rates it High severity, and the sandbox limits what the attacker gets beyond the browser process.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","endpoints","other"],"not_affected_if":["chrome-at-or-above-156.0.8078.73","no-browser-installed"],"how_to_check":"- Check the installed Chrome version in the browser's About page or with `google-chrome --version` on Linux.\n- Confirm whether any Chromium-based browser on managed machines reports a version below `156.0.8078.73`.","fix":"- Update Google Chrome to `156.0.8078.73` or later.\n- Restart the browser after the update so the fixed build is running.","status":"open","published_at":"2026-10-27T23:17:00+00:00","first_seen_at":"2026-10-27T23:29:43+00:00","triaged_at":"2026-10-27T23:32:02+00:00","updated_at":"2026-10-27T23:32:02+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-27T23:32:02Z","model":"claude-haiku-5-5","output":{"fix":"- Update Google Chrome to `156.0.8078.73` or later.\n- Restart the browser after the update so the fixed build is running.","reach":"internet","title":"Google Chrome: HTML memory corruption lets a crafted page run code","impact":"high","summary":"A memory corruption bug in Chrome's HTML handling, fixed in version 156.0.8078.73, lets a remote attacker run arbitrary code inside the browser sandbox through a crafted web page. Chromium rates it High severity, and the sandbox limits what the attacker gets beyond the browser process.","category":"other","nicknames":[],"who_cares":["chrome","browsers","endpoints"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox via a crafted page","analyst_note":"Check the Chrome release notes and the Chromium security advisory for the exact fixed version and any sandbox escape details.","how_to_check":"- Check the installed Chrome version in the browser's About page or with `google-chrome --version` on Linux.\n- Confirm whether any Chromium-based browser on managed machines reports a version below `156.0.8078.73`.","needs_analyst":true,"not_affected_if":["chrome-at-or-above-156.0.8078.73","no-browser-installed"],"who_is_affected":"Any machine with Google Chrome older than `156.0.8078.73` is exposed when a user opens a malicious page. Teams that manage browsers on employee or build machines should check versions; servers that never run a browser can skip it. Other Chromium-based browsers may pick up the fix on their own schedules.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000627,"input_tokens":3297,"output_tokens":594,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-118317':14A,17A '-2026':13A,16A '156.0.8078.73':33B,76C 'allow':77C 'arbitrari':39B,84C 'attack':37B,61B,80C 'beyond':63B 'browser':18B,43B,65B 'bug':24B 'chrome':2A,19B,26B,73C 'chromium':50B,94C 'code':11A,40B,85C 'corrupt':5A,23B,68C 'craft':8A,47B,91C 'cve':12A,15A 'endpoint':20B 'execut':83C 'fix':30B 'get':62B 'googl':1A,72C 'handl':29B 'high':53B,97C 'html':3A,28B,70C,92C 'insid':41B,86C 'let':6A,34B 'limit':58B 'memori':4A,22B,67C 'page':9A,49B,93C 'potenti':82C 'prior':74C 'process':66B 'rate':51B 'remot':36B,79C 'run':10A,38B 'sandbox':44B,57B,88C 'secur':95C 'sever':54B,96C 'version':32B 'via':89C 'web':48B","nicknames":[],"mitigations":[],"who_affected":"Any machine with Google Chrome older than `156.0.8078.73` is exposed when a user opens a malicious page. Teams that manage browsers on employee or build machines should check versions; servers that never run a browser can skip it. Other Chromium-based browsers may pick up the fix on their own schedules.","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-2026-118317","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118317","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"}