CVE-2026-29195: Netmaker has Privilege Escalation from Admin to Super-Admin via User Update

March 9, 2026 (updated March 11, 2026)

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.

Credits Artem Danilov (Positive Technologies)

References

github.com/advisories/GHSA-ch3w-9456-38v3
github.com/gravitl/netmaker
github.com/gravitl/netmaker/releases/tag/v1.5.0
github.com/gravitl/netmaker/security/advisories/GHSA-ch3w-9456-38v3
nvd.nist.gov/vuln/detail/CVE-2026-29195

Code Behaviors & Features

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