CVE-2026-29196: Netmaker Service User With Network Access Vulnerability

HIGH
Advisory Identifier: GHSA-4hgg-c4rr-6h7f
CWE-863
Published
Advisory Summary

CVE-2026-29196 is a HIGH service user with network access vulnerability (CWE-863: Incorrect Authorization) affecting Netmaker libraries in the Go ecosystem. The issue involves service user with network access can access config files with wireguard private keys. Remediation is available by upgrading affected packages to version 1.5.0.

CVE-2026-29196 at a Glance

CVE Identifier CVE-2026-29196
GHSA Identifier GHSA-4hgg-c4rr-6h7f
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-863: Incorrect Authorization
Affected Product Netmaker
Package Ecosystem Go
Published Date
Last Updated

How to Fix CVE-2026-29196

To remediate this vulnerability, upgrade all affected 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-2026-29196, inspect your project dependencies for Netmaker:

inspect dependencies for github.com/gravitl/netmaker

Analyze the terminal output to locate any version of 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 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

A user assigned the platform-user role can retrieve WireGuard private keys of all wireguard configs in a network by calling GET /api/extclients/{network} or GET /api/nodes/{network}. While the Netmaker UI restricts visibility, the API endpoints return full records, including private keys, without filtering based on the requesting user's ownership. > Credits > Artem Danilov (Positive Technologies)

CVE-2026-29196 Affected Netmaker Versions

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

References

Frequently Asked Questions

What is CVE-2026-29196?
CVE-2026-29196 is a security vulnerability in Netmaker involving Service User with Network Access Can Access config files with WireGuard Private Keys under CWE-863: Incorrect Authorization.
Which Netmaker versions are affected?
Affected versions include releases prior to 1.5.0 across affected packages: github.com/gravitl/netmaker.
What version fixes CVE-2026-29196?
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 CWE is associated with CVE-2026-29196?
CVE-2026-29196 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-2026-29196?
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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-4hgg-c4rr-6h7f",
  "modified" : "2026-03-11T20:39:09Z",
  "published" : "2026-03-09T17:27:52Z",
  "aliases" : [ "CVE-2026-29196" ],
  "summary" : "Netmaker: Service User with Network Access Can Access config files with WireGuard Private Keys",
  "details" : "A user assigned the platform-user role can retrieve WireGuard private keys of all wireguard configs in a network by calling GET /api/extclients/{network} or GET /api/nodes/{network}. While the Netmaker UI restricts visibility, the API endpoints return full records, including private keys, without filtering based on the requesting user's ownership.\n\n> Credits\n> Artem Danilov (Positive Technologies)",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/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-4hgg-c4rr-6h7f"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-29196"
  }, {
    "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" : "2026-03-09T17:27:52Z",
    "nvd_published_at" : "2026-03-07T17:15:52Z"
  }
}