CVE-2025-5064

Severity: medium (CVSS 5.4 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: 2025-05-27 · updated 2026-06-17
Weakness: CWE-200

Description

Inappropriate implementation in Background Fetch API in Google Chrome prior to 137.0.7151.55 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Affected products

Google Chrome: before 137.0.7151.55 — fixed in 137.0.7151.55

How to fix

Upgrade to a fixed version: Google Chrome 137.0.7151.55. Check the vendor advisory for mitigations.

References

https://chromereleases.googleblog.com/2025/05/stable-channel-update-for-desktop_27.html
https://issues.chromium.org/issues/40058068

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