CVE-2026-12453 Chrome <149.0.7827.155: Insecure Input - Same-Origin Bypass
CVE-2026-12453 Published on June 17, 2026
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)
Vulnerability Analysis
CVE-2026-12453 can be exploited with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Products Associated with CVE-2026-12453
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Affected Versions
Google Chrome:- Version 149.0.7827.155 and below 149.0.7827.155 is affected.