CVE-2026-106378

Analyzed Analyzed - Analysis Complete

Privilege Escalation in Chrome Sandbox on Mac

Publication date: 2026-10-06

Last updated on: 2026-10-07

Assigner: Chrome

Description

Privilege elevation in Sandbox in Google Chrome on on Mac prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-06

Last Modified

2026-10-07

Generated

2026-10-19

AI Q&A

2026-10-07

EPSS Evaluated

2026-10-18

NVD

CVE-2026-106378

EUVD

EUVD-2026-93701

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 155.0.8059.39 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-250	The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses.

Attack-Flow Graph

Executive Summary

This vulnerability is a privilege elevation issue in the sandbox component of Google Chrome on Mac. It allows a remote attacker who has already compromised the renderer process to escape the sandbox and execute arbitrary code outside of it by tricking the user into visiting a specially crafted HTML page.

Detection Guidance

This vulnerability is specific to Google Chrome on Mac prior to version 155.0.8059.39. To detect it, check your Chrome version by running chrome://version/ in the browser. If your version is below 155.0.8059.39, the system is vulnerable.

Impact Analysis

If exploited, this vulnerability could allow an attacker to gain control over your system, install malware, steal sensitive data, or perform actions on your behalf. It bypasses security boundaries designed to contain malicious activity within the browser.

Compliance Impact

This vulnerability allows a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page, which could lead to unauthorized access to sensitive data. This may violate compliance requirements under GDPR (data protection) and HIPAA (health information security) by enabling data breaches or unauthorized processing.

Mitigation Strategies

Update Google Chrome to version 155.0.8059.39 or later to address the privilege elevation vulnerability in the sandbox.

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