CVE-2026-29194: Github.com/gravitl/netmaker Netmaker Has Insufficient Authorization Vulnerability

HIGH
Advisory Identifier: GHSA-hmqr-wjmj-376c
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CVSS 8.1
CWE-863
Published
Advisory Summary

CVE-2026-29194 is a HIGH (CVSS 8.1) netmaker has insufficient authorization vulnerability (CWE-863: Incorrect Authorization) affecting Github.com/gravitl/netmaker libraries in the Go ecosystem. The issue involves netmaker has insufficient authorization in host token verification. Remediation is available by upgrading affected packages to version 1.5.0.

CVE-2026-29194 at a Glance

CVE Identifier CVE-2026-29194
GHSA Identifier GHSA-hmqr-wjmj-376c
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-863: Incorrect Authorization
Affected Product Github.com/gravitl/netmaker
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 8.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2026-29194

To remediate this vulnerability, upgrade all affected Github.com/gravitl/netmaker dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/gravitl/netmaker fixed: 1.5.0 
Upgrade github.com/gravitl/netmaker to 1.5.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/gravitl/netmaker

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-29194, inspect your project dependencies for Github.com/gravitl/netmaker:

inspect dependencies for github.com/gravitl/netmaker

Analyze the terminal output to locate any version of Github.com/gravitl/netmaker in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.5.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. In Github.com/gravitl/netmaker, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

The Authorise middleware in Netmaker incorrectly validates host JWT tokens. When a route permits host authentication (hostAllowed=true), a valid host token bypasses all subsequent authorisation checks without verifying that the host is authorised 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. > Credits > Artem Danilov (Positive Technologies)

CVE-2026-29194 Affected Github.com/gravitl/netmaker Versions

1 component(s)
Fixed Versions:
1.5.0
Product / Package Ecosystem Affected Versions Fixed Version
github.com/gravitl/netmaker
golang/github.com/gravitl/netmaker
Go
< 1.5.0
1.5.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/gravitl/netmaker/security/advisories/GHSA-hmqr-wjmj-376c
NVD — CVE-2026-29194 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-29194
Github.com/gravitl/netmaker Source Repository REPOSITORY
https://github.com/gravitl/netmaker
Github.com/gravitl/netmaker Release RELEASE
https://github.com/gravitl/netmaker/releases/tag/v1.5.0

Frequently Asked Questions

What is CVE-2026-29194?
CVE-2026-29194 is a security vulnerability in Github.com/gravitl/netmaker involving Netmaker has Insufficient Authorization in Host Token Verification under CWE-863: Incorrect Authorization.
Which Github.com/gravitl/netmaker versions are affected?
Affected versions include releases prior to 1.5.0 across affected packages: github.com/gravitl/netmaker.
What version fixes CVE-2026-29194?
Upgrading to 1.5.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/gravitl/netmaker affected?
Yes, github.com/gravitl/netmaker is affected in releases prior to 1.5.0. Upgrade your dependency to 1.5.0 or later.
What is the CVSS score of CVE-2026-29194?
CVE-2026-29194 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2026-29194?
CVE-2026-29194 is classified under CWE-863: Incorrect Authorization (The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.).
How can I check Go dependencies for CVE-2026-29194?
Run the dependency tree command: 'inspect dependencies for github.com/gravitl/netmaker'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-hmqr-wjmj-376c",
  "modified" : "2026-03-11T20:38:58Z",
  "published" : "2026-03-09T17:27:46Z",
  "aliases" : [ "CVE-2026-29194" ],
  "summary" : "Netmaker has Insufficient Authorization in Host Token Verification",
  "details" : "The Authorise middleware in Netmaker incorrectly validates host JWT tokens. When a route permits host authentication (hostAllowed=true), a valid host token bypasses all subsequent authorisation checks without verifying that the host is authorised 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.\n\n\n> Credits\n> Artem Danilov (Positive Technologies)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/gravitl/netmaker"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.5.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/gravitl/netmaker/security/advisories/GHSA-hmqr-wjmj-376c"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-29194"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/gravitl/netmaker"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gravitl/netmaker/releases/tag/v1.5.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-863" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-09T17:27:46Z",
    "nvd_published_at" : "2026-03-07T16:15:54Z"
  }
}