Unencrypted storage of authentication state in StrongDM Desktop Application state.kv file
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-312.
Summary
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).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA StrongDM Desktop Application (StrongDM) Fixed in 23.74.0
- Fix · CNA StrongDM Desktop Client (StrongDM) Fixed in 53.77.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-4387
- 2026-10-03 Alias added: GHSA-qgjm-4mg2-6wm5
References
More StrongDM vulnerabilities
- TI-2025-05590 OS command injection in StrongDM sdm-cli CVSS 4.0HIGH 8.5
- TI-2025-05591 Root Certificate Injection CVSS 4.0HIGH 8.5
- TI-2025-05589 Authentication Hijack CVSS 4.0HIGH 8.5
- TI-2025-05592 Configd Injection CVSS 4.0HIGH 7.0
Sources
- CVE-2026-4387 · CVE Program
- CVE-2026-4387 · NVD
- FIRST EPSS
- GHSA-qgjm-4mg2-6wm5 · GitHub Advisory Database · CC BY 4.0
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