CVE-2026-53603

nebula-mesh is a self-hosted control plane for Slack Nebula mesh VPN. Prior to version 0.3.8, Operator session tokens are stored in plaintext in the operator_sessions table (the token column is the PRIMARY KEY). The session token is a 32-byte random hex value sent directly in a cookie and valid for 24 hours. Anyone who can read the database (backup, snapshot, file copy, or SQL-level disclosure) obtains every active session token and can hijack operator sessions directly, with no further authentication. This issue has been patched in version 0.3.8.

CVSS

No CVSS.

References

Link	Resource
https://github.com/forgekeep/nebula-mesh/commit/7cb01bab281ded557f8b6c81dab5f48d4c10182e
https://github.com/forgekeep/nebula-mesh/releases/tag/v0.3.8
https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-q4vm-pq3q-8wgq

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-04 20:17

Updated : 2026-09-08 21:05

NVD link : CVE-2026-53603

Mitre link : CVE-2026-53603

CVE.ORG link : CVE-2026-53603

JSON object : View

Products Affected

No product.

CWE

CWE-312

Cleartext Storage of Sensitive Information

CWE-522

Insufficiently Protected Credentials

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