CVE-2025-8582

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% 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-20

Description

Insufficient validation of untrusted input in Core in Google Chrome prior to 139.0.7258.66 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) 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/40089450

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