CVE-2026-87634

Analyzed Analyzed - Analysis Complete

Use After Free in WebPackaging in Google Chrome

Publication date: 2026-09-09

Last updated on: 2026-09-10

Assigner: Chrome

Description

Use after free in WebPackaging in Google Chrome prior to 153.0.8010.36 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:
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Meta Information

Published

2026-09-09

Last Modified

2026-09-10

Generated

2026-09-29

AI Q&A

2026-09-09

EPSS Evaluated

2026-09-27

NVD

CVE-2026-87634

EUVD

EUVD-2026-74432

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 153.0.8010.36 (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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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 WebPackaging in Google Chrome versions prior to 153.0.8010.36. A use-after-free occurs when a program continues to use memory after it has been freed, potentially leading to arbitrary code execution outside the sandbox. An attacker could exploit this by crafting a malicious HTML page.

Detection Guidance

Detection of this vulnerability requires checking the version of Google Chrome installed on your system. If the version is prior to 153.0.8010.36, the system is vulnerable. Use the command 'google-chrome --version' on Linux or check 'chrome://version/' in the browser on Windows or macOS to verify the version.

Impact Analysis

If exploited, this vulnerability could allow a remote attacker to execute arbitrary code on your system outside the browser sandbox. This could lead to unauthorized access, data theft, or installation of malware. Users should update Chrome to the latest version to mitigate this risk.

Compliance Impact

This vulnerability allows remote attackers to execute arbitrary code outside the sandbox via crafted HTML pages, which could lead to unauthorized data access or manipulation. This may impact compliance with GDPR by risking personal data breaches and HIPAA by potentially exposing protected health information if exploited.

Mitigation Strategies

Immediately update Google Chrome to version 153.0.8010.36 or later. This can be done through the browser's built-in update mechanism or by downloading the latest version from the official Google Chrome website.

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