What’s Vulnerable › Vulnerabilities

CVE-2025-6556

• Severity: medium (CVSS 5.4 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: 2025-06-24 · updated 2026-06-17
• Weakness: CWE-288

Description

Insufficient policy enforcement in Loader in Google Chrome prior to 138.0.7204.49 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Low)

Affected products

• Google Chrome: before 138.0.7204.49 — fixed in 138.0.7204.49

How to fix

Upgrade to a fixed version: Google Chrome 138.0.7204.49. Check the vendor advisory for mitigations.

References

• https://chromereleases.googleblog.com/2025/06/stable-channel-update-for-desktop_24.html
• https://issues.chromium.org/issues/40062462

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