PT-2026-25935 · Devolutions · Powershell Universal

Published 2026-03-17 · Updated 2026-03-17 · CVE-2026-4064

Mitre

CVSS v3.1

8.3

8.3

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

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.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-4064

Affected Products

Powershell Universal

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-4064 · Security Note
• https://devolutions.net/security/advisories/DEVO-2026-0008 · Note