Media Process Cross-Origin Leak in Chrome <148.0.7778.216 on Windows
CVE-2026-9991 Published on May 28, 2026
Inappropriate implementation in Media in Google Chrome on Windows prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
Vulnerability Analysis
CVE-2026-9991 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, a small impact on integrity and availability.
Weakness Type
What is an Information Disclosure Vulnerability?
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVE-2026-9991 has been classified to as an Information Disclosure vulnerability or weakness.
Products Associated with CVE-2026-9991
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Affected Versions
Google Chrome:- Version 148.0.7778.216 and below 148.0.7778.216 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.