What’s Vulnerable › Vulnerabilities

CVE-2026-84354

• Severity: critical (CVSS 9.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-02 · updated 2026-09-03
• Weakness: CWE-863

Description

Incorrect authorization in FileSystem in Google Chrome prior to 152.0.7977.75 allowed a remote attacker leveraging social engineering to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

Affected products

• Google Chrome: before 152.0.7977.75 — fixed in 152.0.7977.75

How to fix

Upgrade to a fixed version: Google Chrome 152.0.7977.75. Check the vendor advisory for mitigations.

References

• https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop.html
• https://issues.chromium.org/issues/498839176

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