CyberRota Analysis
AI-GeneratedThe vulnerability affects nebula-mesh versions 0.2.0 to before 0.5.0, where the OIDC login endpoint can be accessed without authentication, allowing unauthenticated remote clients to exploit this by generating excessive OIDC state values. This could lead to resource exhaustion, impacting the availability of the service. Organizations using affected versions should prioritize upgrading to version 0.5.0 to mitigate potential denial-of-service risks.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
nebula-mesh is a self-hosted control plane for Slack Nebula mesh VPN. From version 0.2.0 to before version 0.5.0, when OIDC is enabled, GET /ui/oidc/login is reachable without authentication and is registered outside the Web UI rate-limited auth routes. Every request creates a fresh random OIDC state value and stores it in an in-memory map for 10m. Expired states are swept lazily, but there is no rate limit or maximum live-state cap on the allocation path. An unauthenticated remote client can therefore grow OIDC.states for the full state TTL, bounded by request throughput rather than by configured auth rate limits. This issue has been patched in version 0.5.0.