CVE-2025-8581

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-08-07 · updated 2026-06-17
Weakness: CWE-79

Description

Inappropriate implementation in Extensions in Google Chrome prior to 139.0.7258.66 allowed a remote attacker who convinced a user to engage in specific UI gestures to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)

Affected products

Google Chrome: before 139.0.7258.66 — fixed in 139.0.7258.66

How to fix

Upgrade to a fixed version: Google Chrome 139.0.7258.66. Check the vendor advisory for mitigations.

References

https://chromereleases.googleblog.com/2025/08/stable-channel-update-for-desktop.html
https://issues.chromium.org/issues/416942878

Get alerted when CVE-2025-8581 or the next vulnerability affects your stack