{"id":"CVE-2026-118315","kind":"vulnerability","aliases":["CVE-2026-118315"],"related":[],"title":"Chrome: crafted SVG handling lets a web page run code in the sandbox","description":"Improper input validation in SVG 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":"Google Chrome before 156.0.8078.73 mishandles input validation in SVG rendering, so a crafted HTML page can execute code inside the browser sandbox. Chromium rates it High severity; the sources do not say whether a full sandbox escape is also possible.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","endpoints","runtime"],"not_affected_if":["already-updated-chrome"],"how_to_check":"- Run `chrome://version` in Chrome and compare the version with `156.0.8078.73`\n- On managed fleets, query the installed Chrome version with your endpoint management tool","fix":"- Update Google Chrome to `156.0.8078.73` or later\n- Relaunch 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":"2026-10-27T23:32:04+00:00","updated_at":"2026-10-27T23:32:04+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-10-27T23:32:04Z","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 fixed build is running","reach":"internet","title":"Chrome: crafted SVG handling lets a web page run code in the sandbox","impact":"high","summary":"Google Chrome before 156.0.8078.73 mishandles input validation in SVG rendering, so a crafted HTML page can execute code inside the browser sandbox. Chromium rates it High severity; the sources do not say whether a full sandbox escape is also possible.","category":"runtime","nicknames":[],"who_cares":["chrome","browsers","endpoints"],"confidence":0.6,"needs_auth":"no","worst_case":"attacker runs code inside the browser sandbox via a web page","analyst_note":"Check the Chrome Releases blog for the 156.0.8078.73 entry to confirm whether a sandbox escape is included and whether the flaw is exploited in the wild.","how_to_check":"- Run `chrome://version` in Chrome and compare the version with `156.0.8078.73`\n- On managed fleets, query the installed Chrome version with your endpoint management tool","needs_analyst":true,"not_affected_if":["already-updated-chrome"],"who_is_affected":"Any user or machine running Google Chrome older than 156.0.8078.73 is exposed, because the flaw is reached by simply loading a crafted HTML page. Systems that only run a fixed, updated Chrome or use a different browser do not need action for this issue.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000607,"input_tokens":3295,"output_tokens":555,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-118315':16A,19A '-2026':15A,18A '156.0.8078.73':27B,74C 'allow':75C 'also':62B 'arbitrari':82C 'attack':78C 'browser':20B,44B 'chrome':1A,21B,25B,71C 'chromium':46B,92C 'code':10A,41B,83C 'craft':2A,36B,89C 'cve':14A,17A 'endpoint':22B 'escap':60B 'execut':40B,81C 'full':58B 'googl':24B,70C 'handl':4A 'high':49B,95C 'html':37B,90C 'improp':64C 'input':29B,65C 'insid':42B,84C 'let':5A 'mishandl':28B 'page':8A,38B,91C 'possibl':63B 'potenti':80C 'prior':72C 'rate':47B 'remot':77C 'render':33B 'run':9A 'runtim':23B 'sandbox':13A,45B,59B,86C 'say':55B 'secur':93C 'sever':50B,94C 'sourc':52B 'svg':3A,32B,68C 'valid':30B,66C 'via':87C 'web':7A 'whether':56B","nicknames":[],"mitigations":[],"who_affected":"Any user or machine running Google Chrome older than 156.0.8078.73 is exposed, because the flaw is reached by simply loading a crafted HTML page. Systems that only run a fixed, updated Chrome or use a different browser do not need action for 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-2026-118315","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118315","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"}