{"id":"CVE-2026-3909","kind":"vulnerability","aliases":["CVE-2026-3909"],"related":[],"title":"Out of bounds write in Skia in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to perform out of…","description":"Google Skia contains an out-of-bounds write vulnerability that could allow a remote attacker to perform out of bounds memory access via a crafted HTML page. This vulnerability affects Google Chrome and ChromeOS, Android, Flutter, and possibly other products.\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 Skia, the 2D graphics library used by Chrome, Android, and Flutter, has an out-of-bounds write bug. A remote attacker who gets a user to load a crafted HTML page can corrupt memory and may run code.","severity":"high","cvss":8.8,"epss":null,"exploited":true,"exploited_at":"2026-03-13T00:00:00+00:00","products":[{"name":"Google Skia","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"google chrome","fixed":["146.0.7680.80"],"affected":"< 146.0.7680.80","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["android","browser-users","chrome","chromeos","exploited","flutter","vendor"],"not_affected_if":["no-chromium-or-flutter-in-use"],"how_to_check":"Check whether the team ships or runs Chrome, Chromium-based apps, Android WebView, or Flutter apps, and note their versions.","fix":"Update Chrome, ChromeOS, Android, and Flutter to the vendor's patched builds, per Google's advisory.\nCISA says to apply vendor mitigations, or stop using the product if no mitigation exists.","status":"open","published_at":"2026-03-13T00:00:00+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:39:06+00:00","updated_at":"2026-10-23T23:44:51+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-23T20:39:06Z","model":"claude-haiku-5-5","output":{"fix":"Update Chrome, ChromeOS, Android, and Flutter to the vendor's patched builds, per Google's advisory.\nCISA says to apply vendor mitigations, or stop using the product if no mitigation exists.","reach":"internet","summary":"Google Skia, the 2D graphics library used by Chrome, Android, and Flutter, has an out-of-bounds write bug. A remote attacker who gets a user to load a crafted HTML page can corrupt memory and may run code.","category":"vendor","who_cares":["chrome","android","flutter","chromeos","browser-users"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker corrupts browser memory via a crafted page and may execute code.","analyst_note":"Find Google's patched Chrome/Android/Flutter versions for CVE-2026-3909 in the Chrome releases blog or Android security bulletin; sources give no fixed versions.","how_to_check":"Check whether the team ships or runs Chrome, Chromium-based apps, Android WebView, or Flutter apps, and note their versions.\nunknown\nunknown","needs_analyst":true,"not_affected_if":["no-chromium-or-flutter-in-use"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000484,"input_tokens":2560,"output_tokens":455,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-01':131C '-2026':20A,23A '-3909':21A,24A '146.0.7680.75':12A '22':130C '2d':41B 'access':100C 'action':121C 'affect':108C 'allow':13A,90C 'android':29B,47B,113C 'appli':122C 'applic':128C 'attack':16A,60B,93C 'bod':129C 'bound':3A,55B,85C,98C 'browser':31B 'browser-us':30B 'bug':57B 'chrome':9A,28A,33B,46B,110C 'chromeo':34B,112C 'cisa':119C 'cloud':134C 'code':77B 'contain':80C 'corrupt':72B 'could':89C 'craft':68B,103C 'cve':19A,22A 'discontinu':137C 'exploit':35B 'flutter':36B,49B,114C 'follow':127C 'get':62B 'googl':8A,38B,78C,109C 'google':25A,27A 'graphic':42B 'guidanc':132C 'html':69B,104C 'instruct':126C 'librari':43B 'load':66B 'may':75B 'memori':73B,99C 'mitig':123C,143C 'out-of-bound':52B,82C 'page':70B,105C 'per':124C 'perform':18A,95C 'possibl':116C 'prior':10A 'product':118C,141C 'remot':15A,59B,92C 'requir':120C 'run':76B 'servic':135C 'skia':6A,26A,39B,79C 'unavail':145C 'use':44B,138C 'user':32B,64B 'vendor':37B,125C 'via':101C 'vulner':87C,107C 'write':4A,56B,86C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2026-03-13T00:00:00+00:00","kev":{"dateAdded":"2026-03-13","dueDate":"2026-03-27","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":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2026-3909","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-3909","severity":null,"published_at":"2026-03-13T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T11:39:14+00:00","note":null},{"source":"nvd","external_id":"CVE-2026-3909","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3909","severity":null,"published_at":"2026-03-13T19:55:11+00:00","modified_at":"2026-06-17T10:44:24+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"}