Description
Side-channel information leakage in V8 in Google Chrome prior to 140.0.7339.207 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
Affected products
google: chrome; apple: macos; linux: linux kernel; microsoft: windows
References2
- chromereleases.googleblog.com/2025/09/stable-channel-update-for… Release NotesVendor Advisory
- issues.chromium.org/issues/430336833 Issue TrackingPermissions Required
Metrics
- CVSS 3.1
-
9.1
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - EPSS — exploit probability
- 0% percentile: 31 · as of 8 November 2026
- CWE
- CWE-1300CWE-203
Could this be exploited in your environment?
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