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)

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-05-06
Last Modified
2026-05-06
Generated
2026-07-06
AI Q&A
2026-05-06
EPSS Evaluated
2026-07-05
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
CWE Icon
KEV
KEV Icon
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.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
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.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-7978. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart