GHSA-HMQR-WJMJ-376C

Vulnerability from github – Published: 2026-03-09 17:27 – Updated: 2026-03-11 20:38
VLAI?
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.

Credits Artem Danilov (Positive Technologies)

Severity ?
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
8.6 (High)
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
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/gravitl/netmaker"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-29194"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-09T17:27:46Z",
    "nvd_published_at": "2026-03-07T16:15:54Z",
    "severity": "HIGH"
  },
  "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\u003e Credits\n\u003e Artem Danilov (Positive Technologies)",
  "id": "GHSA-hmqr-wjmj-376c",
  "modified": "2026-03-11T20:38:58Z",
  "published": "2026-03-09T17:27:46Z",
  "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"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Netmaker has Insufficient Authorization in Host Token Verification"
}


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