CVE-2026-7978

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 v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html	Vendor Advisory
https://issues.chromium.org/issues/497828892	Issue Tracking Permissions Required

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*

History

26 Oct 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) Implementación inapropiada en Companion en Google Chrome en Mac anterior a 148.0.7778.96 permitió a un atacante remoto realizar escalada de privilegios a nivel de sistema operativo mediante tráfico de red malicioso. (Gravedad de seguridad de Chromium: Media)

Information

Published : 2026-05-06 19:16

Updated : 2026-10-26 19:10

NVD link : CVE-2026-7978

Mitre link : CVE-2026-7978

CVE.ORG link : CVE-2026-7978

JSON object : View

Products Affected

google

chrome

apple

macos

CWE

CWE-693

Protection Mechanism Failure

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