CVE-2026-113190
Modified Modified - Updated After Analysis

Use After Free in Google Chrome ServiceWorker

Publication date: 2026-10-20

Last updated on: 2026-11-03

Assigner: Chrome

Description
Confused deputy in ServiceWorker in Google Chrome prior to 156.0.8078.47 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)

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Meta Information

Published
2026-10-20
Last Modified
2026-11-03
Generated
2026-11-10
AI Q&A
2026-10-21
EPSS Evaluated
2026-11-08
NVD
CVE-2026-113190
EUVD
EUVD-2026-105564

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
google chrome to 156.0.8078.47 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-441 The product receives a request, message, or directive from an upstream component, but the product does not sufficiently preserve the original source of the request before forwarding the request to an external actor that is outside of the product's control sphere. This causes the product to appear to be the source of the request, leading it to act as a proxy or other intermediary between the upstream component and the external actor.
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

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Executive Summary

This vulnerability is a use-after-free issue in the ServiceWorker component of Google Chrome. It occurs when a program tries to use memory that has already been freed, potentially leading to arbitrary code execution within the browser's sandbox. An attacker could exploit this by crafting a malicious HTML page.

Detection Guidance

This vulnerability is specific to Google Chrome versions prior to 156.0.8078.47. To detect it, check your Chrome version by running chrome://version/ in the browser address bar. If your version is below 156.0.8078.47, the system is vulnerable. Update Chrome to the latest version to mitigate the risk.

Impact Analysis

If exploited, this vulnerability could allow a remote attacker to run arbitrary code on your system through a specially designed webpage. This could lead to unauthorized access, data theft, or installation of malware, even though Chrome's sandbox limits some actions.

Compliance Impact

This vulnerability allows remote attackers to execute arbitrary code inside the sandbox via crafted HTML pages, which could lead to unauthorized data access or manipulation. Such risks may impact compliance with GDPR (data protection) and HIPAA (health data security) by potentially exposing sensitive user data or violating confidentiality requirements.

Mitigation Strategies

Update Google Chrome to version 156.0.8078.47 or later to address the use-after-free vulnerability in ServiceWorker.

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