What’s Vulnerable › Vulnerabilities

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

• Severity: low (CVSS 2.0 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-29 · updated 2026-10-06
• Weakness: CWE-312

Description

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).

Affected products

• StrongDM Desktop Application: before 23.74.0 — fixed in 23.74.0
• StrongDM Desktop Client: before 53.77.0 — fixed in 53.77.0

How to fix

Upgrade to a fixed version: StrongDM Desktop Application 23.74.0; StrongDM Desktop Client 53.77.0. Check the vendor advisory for mitigations.

References

• https://security.strongdm.com/?tcuUid=56fde839-9388-4361-8d3b-9baa7b2de2ed
• https://specterops.io/blog/2026/06/01/cve-2026-4387-strongdm-state-file-reuse/

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