What’s Vulnerable › Vulnerabilities

CVE-2026-11656

• Severity: high (CVSS 8.3 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: 2026-06-09 · updated 2026-07-23
• Weakness: CWE-416

Description

Use after free in ServiceWorker in Google Chrome prior to 149.0.7827.103 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension. (Chromium security severity: High)

Affected products

• Google Chrome: before 149.0.7827.103 — fixed in 149.0.7827.103

How to fix

Upgrade to a fixed version: Google Chrome 149.0.7827.103. Check the vendor advisory for mitigations.

References

• https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html
• https://issues.chromium.org/issues/513424000

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