CVE-2025-8581

MEDIUM

Google Chrome < 139.0.7258.66 - Cross-Origin Data Leak via Extensions

Title source: llm

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)

References (2)

Core 2

Core References

Release Notes, Vendor Advisory

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

Issue Tracking, Permissions Required

https://issues.chromium.org/issues/416942878

Scores

CVSS v3 4.3

EPSS 0.0006

EPSS Percentile 19.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

google/chrome < 139.0.7258.66

Published Aug 07, 2025

Tracked Since Feb 18, 2026