CVE-2025-10890

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-09-24 · updated 2026-09-26
Weakness: CWE-1300

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: before 140.0.7339.207 — fixed in 140.0.7339.207

How to fix

Upgrade to a fixed version: Google Chrome 140.0.7339.207. Check the vendor advisory for mitigations.

References

https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop_23.html
https://issues.chromium.org/issues/430336833

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