What’s Vulnerable › Vulnerabilities

CVE-2026-3939

• Severity: medium (CVSS 5.3 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: 2026-03-11 · updated 2026-06-17
• Weakness: CWE-284

Description

Insufficient policy enforcement in PDF in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to bypass navigation restrictions via a crafted PDF file. (Chromium security severity: Low)

Affected products

• Google Chrome: before 146.0.7680.71 — fixed in 146.0.7680.71

How to fix

Upgrade to a fixed version: Google Chrome 146.0.7680.71. Check the vendor advisory for mitigations.

References

• https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_10.html
• https://issues.chromium.org/issues/40058077

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