CVE-2026-47726: Access Control Flaw

Description

nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.2, internal/api/audit.go:12 — handleGetAuditLog does no admin check. The route is bearer-auth gated only; any operator API key returns the full audit log via store.ListAuditEntries (up to limit=1000). This includes cross-tenant actor names, host/CA/operator IDs, action timestamps, and masked-IP entries from rate-limit refusals — enough surface for a tenant to enumerate the server's activity, infer staffing patterns, or identify high-value targets. This issue has been patched in version 0.3.2.

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Weakness Type (CWE)

CWE-285 CWE-285

References

Other References

https://github.com/forgekeep/nebula-mesh/commit/8baaace54c2a23e7c351b3efab5a31ab07b125dc https://github.com/forgekeep/nebula-mesh/releases/tag/v0.3.2 https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-qm33-p5p9-f8vg https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-qm33-p5p9-f8vg

Frequently Asked Questions

What is CVE-2026-47726? +

nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.2, internal/api/audit.go:12 — handleGetAuditLog does no admin check. The route is bearer-auth gated only; any operator API key returns the full audit log via store.ListAuditEntries (up to limit=1000). This includes cross-tenant actor names, host/CA/operator IDs, action timestamps, and masked-IP entries from rate-limit refusals — enough surface for a tenant to enumerate the server's activity, infer staffing patterns, or identify high-value targets. This issue has been patched in version 0.3.2.

How do I check if I'm vulnerable to CVE-2026-47726? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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