nebula-mesh: GET /api/v1/audit-log discloses all entries to any operator
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-285.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| juev | nebula-mesh | before 0.3.2 | 0.3.2 | Patch available | CNA |
| — | github.com/juev/nebula-mesh (Go) | before 0.3.2 | 0.3.2 | Patch available | GHSA-qm33-p5p9-f8vg |
- nebula-mesh Vendorjuev Affected before 0.3.2 Fixed in 0.3.2 Patch available CNA
- github.com/juev/nebula-mesh (Go) Vendor— Affected before 0.3.2 Fixed in 0.3.2 Patch available GHSA-qm33-p5p9-f8vg
Remediation
- Fix · CNA nebula-mesh (juev) Fixed in 0.3.2
- Fix · GHSA-qm33-p5p9-f8vg github.com/juev/nebula-mesh (Go) Fixed in 0.3.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-47726
- 2026-10-03 Alias added: GHSA-qm33-p5p9-f8vg
References
Other 5
- https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-qm33-p5p9-f8vg
- https://github.com/forgekeep/nebula-mesh/commit/8baaace54c2a23e7c351b3efab5a31ab07b125dc
- https://github.com/forgekeep/nebula-mesh/releases/tag/v0.3.2
- https://github.com/juev/nebula-mesh/security/advisories/GHSA-qm33-p5p9-f8vg
- https://github.com/juev/nebula-mesh
More juev vulnerabilities
- TI-2026-35226 nebula-mesh: Web UI lacks CSRF tokens on /ui/* mutating endpoints CVSS 4.0MEDIUM 6.9
- TI-2026-35499 nebula-mesh: Session and OIDC state cookies lack the Secure attribute CVSS 4.0MEDIUM 4.6
- TI-2026-35225 nebula-mesh: API endpoints lack ownership checks, enabling cross-operator privilege escalation CVSS 3.1CRITICAL 9.9
- TI-2026-36454 Nebula Mesh: Web UI lacks ownership checks, enabling cross-operator access to hosts and networks (read, block, delete) CVSS 3.1HIGH 8.8
- TI-2026-35223 nebula-mesh: Host advanced overrides allow YAML injection into agent config.yml CVSS 4.0HIGH 8.7
- TI-2026-35468 nebula-mesh: Decrypted CA private key persists in heap after signing CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-47726 · CVE Program
- CVE-2026-47726 · NVD
- FIRST EPSS
- GHSA-qm33-p5p9-f8vg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences