Critical severity · published Jun 4, 2026
CVE-2026-11063
Insufficient validation of untrusted input in WebNN in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to…
9.6
CVSS
0.2%
EPSS
No
On KEV
Description
Insufficient validation of untrusted input in WebNN in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
Chrome · Google
149.0.7827.53 before 149.0.7827.53 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-11063
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-11063
Vendor Advisory
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html
Permissions Required
https://issues.chromium.org/issues/499051067
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