CVE-2026-17864

Analyzed Analyzed - Analysis Complete

Privilege Escalation in Google Chrome Updater on Mac

Publication date: 2026-07-30

Last updated on: 2026-08-03

Assigner: Chrome

Description

Inappropriate implementation in Updater in Google Chrome on Mac prior to 151.0.7922.72 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-30

Last Modified

2026-08-03

Generated

2026-08-19

AI Q&A

2026-07-30

EPSS Evaluated

2026-08-18

NVD

CVE-2026-17864

EUVD

EUVD-2026-50613

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 151.0.7922.72 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-269	The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Attack-Flow Graph

Executive Summary

This vulnerability is an inappropriate implementation in the Updater component of Google Chrome on Mac. It allows a local attacker to escalate privileges to the operating system level by exploiting a malicious file.

Detection Guidance

This vulnerability involves Google Chrome's Updater on Mac systems. Detection primarily requires checking the Chrome version and Updater logs. Verify if Chrome is updated to version 151.0.7922.72 or later. Check for suspicious files in Chrome's update directories or system logs indicating unauthorized privilege changes.

Impact Analysis

If exploited, this vulnerability could allow an attacker with local access to gain higher privileges on your system, potentially leading to unauthorized control or data access.

Compliance Impact

This vulnerability allows a local attacker to escalate privileges via a malicious file, which could lead to unauthorized access or control of a system. For GDPR, this may violate integrity and confidentiality requirements under Article 32. For HIPAA, it could compromise protected health information integrity or availability if exploited on systems handling such data.

Mitigation Strategies

Update Google Chrome on Mac to version 151.0.7922.72 or later to address the vulnerability.

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