CVE-2026-11656
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Use After Free in Google Chrome ServiceWorker

Publication date: 2026-06-09

Last updated on: 2026-06-09

Assigner: Chrome

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)
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Meta Information
Published
2026-06-09
Last Modified
2026-06-09
Generated
2026-06-09
AI Q&A
2026-06-09
EPSS Evaluated
N/A
NVD
CVE-2026-11656
EUVD
EUVD-2026-35256
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
google chrome to 149.0.7827.103 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
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Executive Summary

This vulnerability is a use-after-free issue in the ServiceWorker component of Google Chrome versions prior to 149.0.7827.103. It allows an attacker who convinces a user to install a malicious Chrome extension to potentially escape the browser's sandbox environment by exploiting this flaw.

Impact Analysis

If exploited, this vulnerability could allow an attacker to break out of the Chrome sandbox, potentially gaining higher privileges on the affected system. This could lead to unauthorized access to system resources or data beyond the browser's normal restrictions.

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