CVE-2026-7978
Undergoing Analysis Undergoing Analysis - In Progress
Inappropriate Implementation in Companion in Google Chrome on Mac

Publication date: 2026-05-06

Last updated on: 2026-05-06

Assigner: Chrome

Description
Inappropriate implementation in Companion in Google Chrome on Mac prior to 148.0.7778.96 allowed a remote attacker to perform OS-level privilege escalation via malicious network traffic. (Chromium security severity: Medium)
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Meta Information
Published
2026-05-06
Last Modified
2026-05-06
Generated
2026-06-16
AI Q&A
2026-05-06
EPSS Evaluated
2026-06-14
NVD
CVE-2026-7978
EUVD
EUVD-2026-28059
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
google chrome to 148.0.7778.96 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-693 The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.
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Executive Summary

This vulnerability is an inappropriate implementation in the Companion component of Google Chrome on Mac systems prior to version 148.0.7778.96. It allows a remote attacker to escalate their privileges at the operating system level by sending malicious network traffic.

Impact Analysis

The vulnerability can allow a remote attacker to gain higher privileges on your Mac system than they should have, potentially leading to unauthorized access or control over your operating system.

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