CVE-2026-4064

HighCVSS 8.3/10Last modified Jun 17, 2026

Description

Missing authorization checks on multiple gRPC service endpoints in PowerShell Universal before 2026.1.4 allows an authenticated user with any valid token to bypass role-based access controls and perform privileged operations — including reading sensitive data, creating or deleting resources, and disrupting service operations — via crafted gRPC requests.

Metrics

CVSS 3.1 8.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Weakness enumeration

CWE-862

Affected software

No affected versions have been published.

Timeline

Published: Mar 17, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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