VULNERABILITY INTELLIGENCE

CVE-2026-7978

CVSS score8.1 HIGH

EPSS probability0.24%

CISA KEVNot currently listed

Published2026-05-06

Last modified2026-10-26

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

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)

Weakness classification

134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-693

Primary references

chrome-cve-admin@google.com — Vendor Advisory
chrome-cve-admin@google.com — Issue Tracking, Permissions Required