Netmaker has Privilege Escalation from Admin to Super-Admin via User Update

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N · score source

EPSS

• CVE-2026-29195: 0.26% estimated exploitation activity in the next 30 days; percentile 17.71 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

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)

Published by the source

9 Mar 2026, 17:27 UTC

Last modified by the source

11 Mar 2026, 20:39 UTC

Source last checked

26 Oct 2026, 15:15 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-ch3w-9456-38v3

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# Patch Next advisory brief: CVE-2026-29195

Advisory: Netmaker has Privilege Escalation from Admin to Super-Admin via User Update
IDs: CVE-2026-29195, GHSA-ch3w-9456-38v3
Record: https://patchnext.com/advisories/cve-2026-29195 (revision 1, source checked 26 Oct 2026, 15:15 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: github.com/gravitl/netmaker 1.5.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/gravitl/netmaker: affected < 1.5.0; fixed in 1.5.0

## Suggested inspection (read-only)
- Go github.com/gravitl/netmaker: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/gravitl/netmaker.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-ch3w-9456-38v3 (GitHub-reviewed advisory GHSA-ch3w-9456-38v3 lists affected ranges: Go github.com/gravitl/netmaker >=0 <1.5.0)

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