CVE-2026-3929: channel information leakage in ResourceTiming.
Chromium: CVE-2026-3929 Side-channel information leakage in ResourceTiming
Other sources
Side-channel information leakage in ResourceTiming in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
— 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
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2026-3929?
CVE-2026-3929 is considered a high severity vulnerability due to its potential for information leakage.
How do I fix CVE-2026-3929?
To mitigate CVE-2026-3929, update Google Chrome to version 146.0.7680.71 or later.
Which versions of Chrome are affected by CVE-2026-3929?
CVE-2026-3929 affects Google Chrome versions prior to 146.0.7680.71.
Can CVE-2026-3929 affect other browsers like Microsoft Edge?
Yes, CVE-2026-3929 also affects the Chromium-based versions of Microsoft Edge prior to version 146.0.3856.59.
What is the nature of the vulnerability CVE-2026-3929?
CVE-2026-3929 involves side-channel information leakage via the ResourceTiming API in Google Chrome.