CVE-2026-87509

Analyzed Analyzed - Analysis Complete

Incorrect Authorization in Chrome Updater on Windows

Publication date: 2026-09-09

Last updated on: 2026-09-10

Assigner: Chrome

Description

Incorrect authorization in Updater in Google Chrome on on Windows prior to 153.0.8010.36 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: Low)

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-09

Last Modified

2026-09-10

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-87509

EUVD

EUVD-2026-74464

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 153.0.8010.36 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This vulnerability involves incorrect authorization in the Updater component of Google Chrome on Windows systems before version 153.0.8010.36. A local attacker could exploit this to execute arbitrary code outside the sandbox using a local program. The Chromium security team rated its severity as Low.

Detection Guidance

Detection may require checking the installed version of Google Chrome. Compare the version against 153.0.8010.36 or later. Use commands like 'google-chrome --version' or check via system package manager (e.g., 'apt list --installed | grep google-chrome').

No specific detection commands are provided in the context for this vulnerability.

Impact Analysis

If exploited, this vulnerability could allow a local attacker to run malicious code on your system with elevated privileges, bypassing security restrictions. This could lead to unauthorized access, data theft, or further compromise of your device.

Compliance Impact

This vulnerability allows a local attacker to execute arbitrary code outside the sandbox via a local program, which could lead to unauthorized access or data exfiltration. Such unauthorized execution may violate compliance requirements under GDPR (data protection) and HIPAA (health information security) by enabling data breaches or unauthorized modifications.

Mitigation Strategies

Update Google Chrome to version 153.0.8010.36 or later immediately. Disable automatic updates temporarily if needed, but prioritize patching. Remove local attacker access if possible.

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