{"id":"CVE-2026-5281","kind":"vulnerability","aliases":["CVE-2026-5281"],"related":[],"title":"Use after free in Dawn in Google Chrome prior to 146.0.7680.178 allowed a remote attacker who had compromised the…","description":"Google Dawn contains an use-after-free vulnerability that could allow a remote attacker who had compromised the renderer process to execute arbitrary code via a crafted HTML page. This vulnerability could affect multiple Chromium-based products including, but not limited to, Google Chrome, Microsoft Edge, and Opera.\n\nCISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","summary":"Google Dawn, the WebGPU implementation inside Chromium-based browsers, has a use-after-free bug that lets a remote attacker who already controls the renderer process run arbitrary code via a crafted HTML page. CISA reports this CVE is being exploited in the wild.","severity":"high","cvss":8.8,"epss":null,"exploited":true,"exploited_at":"2026-04-01T00:00:00+00:00","products":[{"name":"Google Dawn","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"google chrome","fixed":["146.0.7680.177"],"affected":"< 146.0.7680.177","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["browsers","chrome","chromium","edge","exploited","opera","vendor"],"not_affected_if":["unpatched-browser-not-used"],"how_to_check":"Check the installed browser version (for example chrome://version in Chrome or edge://version in Edge) and compare it against the vendor's fixed release.","fix":"Update Google Chrome, Microsoft Edge, Opera and other Chromium-based browsers to the vendor's patched release; CISA says to apply vendor mitigations or discontinue use if none are available.","status":"open","published_at":"2026-04-01T00:00:00+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:38:57+00:00","updated_at":"2026-10-23T23:44:51+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-23T20:38:57Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome, Microsoft Edge, Opera and other Chromium-based browsers to the vendor's patched release; CISA says to apply vendor mitigations or discontinue use if none are available.\nunknown","reach":"internet","summary":"Google Dawn, the WebGPU implementation inside Chromium-based browsers, has a use-after-free bug that lets a remote attacker who already controls the renderer process run arbitrary code via a crafted HTML page. CISA reports this CVE is being exploited in the wild.","category":"vendor","who_cares":["chrome","edge","opera","chromium","browsers"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker runs arbitrary code on the victim's machine after a crafted page is opened.","analyst_note":"Find the patched Chrome/Edge version and the Google Chromium release notes for CVE-2026-5281 to fill in fix and how_to_check; the KEV entry does not name affected versions.","how_to_check":"Check the installed browser version (for example chrome://version in Chrome or edge://version in Edge) and compare it against the vendor's fixed release.\nunknown","needs_analyst":true,"not_affected_if":["unpatched-browser-not-used"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000491,"input_tokens":2576,"output_tokens":466,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-01':144C '-2026':20A,23A '-5281':21A,24A '146.0.7680.178':11A '22':143C 'action':134C 'affect':115C 'allow':12A,93C 'alreadi':59B 'appli':135C 'applic':141C 'arbitrari':65B,105C 'attack':15A,57B,96C 'base':44B,119C 'bod':142C 'browser':29B,45B 'bug':52B 'chrome':8A,28A,30B,127C 'chromium':31B,43B,118C 'chromium-bas':42B,117C 'cisa':72B,132C 'cloud':147C 'code':66B,106C 'compromis':18A,99C 'contain':84C 'control':60B 'could':92C,114C 'craft':69B,109C 'cve':19A,22A,75B 'dawn':5A,26A,37B,83C 'discontinu':150C 'edg':32B,129C 'execut':104C 'exploit':33B,78B 'follow':140C 'free':3A,51B,89C 'googl':7A,36B,82C,126C 'google':25A,27A 'guidanc':145C 'html':70B,110C 'implement':40B 'includ':121C 'insid':41B 'instruct':139C 'let':54B 'limit':124C 'microsoft':128C 'mitig':136C,156C 'multipl':116C 'opera':34B,131C 'page':71B,111C 'per':137C 'prior':9A 'process':63B,102C 'product':120C,154C 'remot':14A,56B,95C 'render':62B,101C 'report':73B 'requir':133C 'run':64B 'servic':148C 'unavail':158C 'use':1A,49B,87C,151C 'use-after-fre':48B,86C 'vendor':35B,138C 'via':67B,107C 'vulner':90C,113C 'webgpu':39B 'wild':81B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2026-04-01T00:00:00+00:00","kev":{"dateAdded":"2026-04-01","dueDate":"2026-04-15","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_by":"134c704f-9b21-4f2e-91b3-4a467353bcc0","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2026-5281","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-5281","severity":null,"published_at":"2026-04-01T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T20:35:31+00:00","note":null},{"source":"nvd","external_id":"CVE-2026-5281","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5281","severity":null,"published_at":"2026-04-01T05:16:01+00:00","modified_at":"2026-07-24T21:10:00+00:00","first_seen_at":"2026-10-23T23:44:51+00:00","fetched_at":"2026-10-23T23:44:51+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"}