CVE-2026-55513
Description
nebula-mesh is a self-hosted control plane for Slack Nebula mesh VPN. From version 0.3.0 to before version 0.5.0, the nebula-mgmt Web UI host-creation path ignores both the server-wide enrollment_token_ttl security setting and per-network network_config.enrollment_token_ttl overrides. API host creation and token-regeneration paths use the configured TTL resolver, but POST /ui/hosts hardcodes now.Add(24 * time.Hour) for newly minted agent enrollment tokens. In deployments that intentionally reduce enrollment-token lifetime, any authenticated operator who can create a host through the Web UI can still mint a bearer enrollment token valid for about 24 hours. This issue has been patched in version 0.5.0.
How to fix
- github.com/forgekeep/nebula-mesh0.5.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/forgekeep/nebula-meshGo | 0.3.0 ≤ v < 0.5.0, 0.4.0 ≤ v < 0.5.0 | 0.5.0 |
| github.com/juev/nebula-meshGo | 0.3.0 ≤ v | — |
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