Int overflow in Dawn (Chrome Mac <146.0.7680.153) cross-origin leak
CVE-2026-4453 Published on March 20, 2026
Integer overflow in Dawn in Google Chrome on Mac prior to 146.0.7680.153 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
Vulnerability Analysis
CVE-2026-4453 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is an Assumed-Immutable Parameter Tampering Vulnerability?
The web application does not sufficiently verify inputs that are assumed to be immutable but are actually externally controllable, such as hidden form fields.
CVE-2026-4453 has been classified to as an Assumed-Immutable Parameter Tampering vulnerability or weakness.
Products Associated with CVE-2026-4453
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Affected Versions
Google Chrome:- Version 146.0.7680.153 and below 146.0.7680.153 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.