Netmaker: Privilege Escalation from Admin to Super-Admin via User Update
Priority LOW 30CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.
Summary
Netmaker makes networks with WireGuard. Prior to version 1.5.0, the user update handler (PUT /api/users/{username}) lacks validation to prevent an admin-role user from assigning the super-admin role during account updates. While the code correctly blocks an admin from assigning the admin role to another user, it does not include an equivalent check for the super-admin role. This issue has been patched in version 1.5.0.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00259 17th percentileScored 2026-11-07
Fix Fixed netmaker (gravitl): 1.5.0github.com/gravitl/netmaker (Go): 1.5.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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 |
|---|---|---|---|---|---|
| gravitl | netmaker | before 1.5.0 | 1.5.0 | Patch available | CNA |
| — | github.com/gravitl/netmaker (Go) | before 1.5.0 | 1.5.0 | Patch available | GHSA-ch3w-9456-38v3 |
- netmaker Vendorgravitl Affected before 1.5.0 Fixed in 1.5.0 Patch available CNA
- github.com/gravitl/netmaker (Go) Vendor— Affected before 1.5.0 Fixed in 1.5.0 Patch available GHSA-ch3w-9456-38v3
Remediation
- Fix · CNA netmaker (gravitl) Fixed in 1.5.0
- Fix · GHSA-ch3w-9456-38v3 github.com/gravitl/netmaker (Go) Fixed in 1.5.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-29195
- 2026-10-03 Alias added: GHSA-ch3w-9456-38v3
References
More gravitl Netmaker vulnerabilities
- TI-2026-23313 Netmaker: Service User with Network Access Can Access config files with WireGuard Private Keys CVSS 4.0HIGH 8.7
- TI-2026-23311 Netmaker: Insufficient Authorization in Host Token Verification CVSS 4.0HIGH 8.6
Sources
- CVE-2026-29195 · CVE Program
- CVE-2026-29195 · NVD
- FIRST EPSS
- GHSA-ch3w-9456-38v3 · GitHub Advisory Database · CC BY 4.0
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