CVE-2026-29194 Netmaker: Insufficient Authorization in Host Token Verification

What is CVE-2026-29194?

CVE-2026-29194 is a high-severity missing authorization vulnerability in gravitl netmaker, published on 7 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Netmaker makes networks with WireGuard. Prior to version 1.5.0, the Authorize middleware in Netmaker incorrectly validates host JWT tokens. When a route permits host authentication (hostAllowed=true), a valid host token bypasses all subsequent authorization checks without verifying that the host is authorized to access the specific requested resource. Any entity possessing knowledge of object identifiers (node IDs, host IDs) can craft a request with an arbitrary valid host token to access, modify, or delete resources belonging to other hosts. Affected endpoints include node info retrieval, host deletion, MQTT signal transmission, fallback host updates, and failover operations. This issue has been patched in version 1.5.0.

Weakness: CWE-863

Which versions are affected by CVE-2026-29194?

3 open source packages ship an affected version, including github.com/gravitl/netmaker. It affects 1 product.

Products include Gravitl Netmaker.

How do I fix CVE-2026-29194?

Upgrade github.com/gravitl/netmaker to 1.5.0 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-29194 being exploited?

There is no known exploitation of CVE-2026-29194 in the wild and no public exploit code.

Other vulnerabilities in gravitl netmaker

• CVE-2026-29196 Netmaker: Service User with Network Access Can Access config files with WireGuard Private Keys High 8.7
• CVE-2026-29195 Netmaker: Privilege Escalation from Admin to Super-Admin via User Update Medium 6.9

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-hmqr-wjmj-376c, GO-2026-4655.