CVE-2026-12453: Insufficient validation of untrusted input in Input
Chromium: CVE-2026-12453 Insufficient validation of untrusted input in Input
Other sources
Insufficient validation of untrusted input in Input in Google Chrome prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to bypass same origin policy via a crafted HTML page. (Chromium security severity: High)
— NVD
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 149.0.7827.155 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 149.0.4022.80 - Upgrade
Upgrade
Google Chrome/Chromium-based browser (renderer/input validation)to a version that resolves this vulnerability.Fixed in 149.0.7827.155
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2026-12437
- CVE-2026-12438
- CVE-2026-12439
- CVE-2026-12440
- CVE-2026-12441
- CVE-2026-12442
- CVE-2026-12443
- CVE-2026-12444
- CVE-2026-12445
- CVE-2026-12446
- CVE-2026-12447
- CVE-2026-12448
- CVE-2026-12449
- CVE-2026-12450
- CVE-2026-12451
- CVE-2026-12452
- CVE-2026-12454
- CVE-2026-12455
- CVE-2026-12456
- CVE-2026-12457
- CVE-2026-12458
- CVE-2026-12459
- CVE-2026-12460
- CVE-2026-12461
- CVE-2026-12462
- CVE-2026-12463
- CVE-2026-12464
- CVE-2026-12465
- CVE-2026-12466
- CVE-2026-12467
- CVE-2026-12468
- CVE-2026-12469
Frequently Asked Questions
What is the severity of CVE-2026-12453?
CVE-2026-12453 has a security severity rating of High.
How do I fix CVE-2026-12453?
To fix CVE-2026-12453, update Google Chrome to version 149.0.7827.155 or later.
What type of vulnerability is CVE-2026-12453?
CVE-2026-12453 is categorized as an Input Validation vulnerability.
What can an attacker do with CVE-2026-12453?
An attacker can bypass the same origin policy through a crafted HTML page if they compromise the renderer process.
Which software is affected by CVE-2026-12453?
CVE-2026-12453 affects Google Chrome prior to version 149.0.7827.155.