CVE-2026-4387 LOW

CVE-2026-4387: Unencrypted storage of authentication state in StrongDM Desktop Application state.kv file

Vendor Strongdm
Product StrongDM Desktop Application
Weakness CWE-312 · Cleartext storage
Published May 29, 2026
Last update June 1, 2026

CVSS base score

2.0/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:L

What the vulnerability does

01Description

StrongDM Desktop Application before 23.74.0 (Desktop Client before 53.77.0) on Microsoft Windows stores authentication state, including a JSON Web Token and asymmetric key material, in cleartext in a per-user state file located at C:\Users\<username>\.sdm\state.kv. The file is protected only by default user-level NTFS permissions. Exploitation requires local read access to the affected user's profile directory and additional deployment and execution conditions on the target host. The condition was reported through coordinated disclosure by Hope Walker (SpecterOps).

Key dates

02Disclosure timeline

May 29, 2026 CVE published
June 1, 2026 Record updated