CVE-2026-79056

Analyzed Analyzed - Analysis Complete

Use After Free in Google Chrome ServiceWorker

Publication date: 2026-08-25

Last updated on: 2026-08-27

Assigner: Chrome

Description

Use after free in ServiceWorker in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Low)

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-25

Last Modified

2026-08-27

Generated

2026-09-15

AI Q&A

2026-08-26

EPSS Evaluated

2026-09-13

NVD

CVE-2026-79056

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 152.0.7977.65 (exc)

Helpful Resources

Exploitability

CWE

KEV

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

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 outside the sandbox. The attacker could exploit this by tricking a user into visiting a specially crafted HTML page.

Detection Guidance

This vulnerability is specific to Google Chrome versions prior to 152.0.7977.65. Detection involves checking the installed Chrome version. On Windows, Linux, or macOS, open Chrome and go to chrome://settings/help to see if an update is available. If the version is below 152.0.7977.65, the system is vulnerable.

Impact Analysis

If exploited, this vulnerability could allow an attacker to run malicious code on your system outside the browser's security sandbox. This might lead to unauthorized access to your data, installation of malware, or other malicious activities. However, the severity is rated as low by Chromium.

Compliance Impact

This vulnerability is a use-after-free issue in Google Chrome's ServiceWorker, which could allow remote attackers to execute arbitrary code outside the sandbox via a crafted HTML page. While this does not directly impact compliance with standards like GDPR or HIPAA, such vulnerabilities may lead to unauthorized data access or execution, which could violate data protection requirements under these regulations if exploited.

Mitigation Strategies

Update Google Chrome to version 152.0.7977.65 or later to address the use after free vulnerability in ServiceWorker.

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