CVE-2026-11666: High Insufficient validation of untrusted input in Input
Chromium: CVE-2026-11665 Out of bounds read in Dawn
Other sources
Insufficient validation of untrusted input in Input in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: High)
— MITRE
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Credit
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 149.0.4022.62
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2026-76033
- CVE-2026-12462
- CVE-2026-12025
- CVE-2026-76018
- CVE-2026-12016
- CVE-2026-76023
- CVE-2026-11701
- CVE-2026-11664
- CVE-2026-76022
- CVE-2026-76045
- CVE-2026-19558
- CVE-2026-13027
- CVE-2026-17693
- CVE-2026-15777
- CVE-2026-19144
- CVE-2026-10949
- CVE-2026-11658
- CVE-2026-11652
- CVE-2026-19559
- CVE-2026-10938
- CVE-2026-9124
- CVE-2026-9951
- CVE-2026-7991
- CVE-2026-11681
- CVE-2026-19145
- CVE-2026-13034
- CVE-2026-19165
Frequently Asked Questions
What is the severity of CVE-2026-11666?
The severity of CVE-2026-11666 is medium with a CVSS score of 5.4.
How do I fix CVE-2026-11666?
To fix CVE-2026-11666, update Google Chrome to version 149.0.7827.103 or later.
What type of vulnerability is CVE-2026-11666?
CVE-2026-11666 is an input validation vulnerability that allows for UI spoofing.
Which software is affected by CVE-2026-11666?
CVE-2026-11666 affects Google Chrome prior to version 149.0.7827.103.
What potential impact does CVE-2026-11666 have?
CVE-2026-11666 may allow a remote attacker to perform UI spoofing via a crafted HTML page.