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HIGHCVE-2026-7978Published Modified CNA Chrome

CVE-2026-7978: Inappropriate implementation in Companion in Google Chrome on Mac prior to 148

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)

Metrics

CVSS v3.1
8.1
Severity
HIGH
Fixed in
148.0.7778.96
Affected Products
1

Fix available

148.0.7778.96
Affected packages
  • Google / Chrome
    < 148.0.7778.96 (from 148.0.7778.96)
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
CVE-2026-7978: Inappropriate implementation in Companion in Google Chrome on Mac prior to 148 | HarborGuard CVE