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Advisory record · GHSA-qpv2-rwc8-c993

Netmaker does not verify JWT signatures for host tokens

CVSS 8.2 HighEPSS 0.0035 · 29th percentile

Published by the GitHub Advisory Database at 28 Apr 2026, 18:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/gravitl/netmakerGo<1.5.01.5.0
Identifiers
GHSA-qpv2-rwc8-c993 · CVE-2026-38651 · GO-2026-5588
Weakness (CWE)
CWE-347
Tags
Published
28 Apr 2026
Updated
25 Jun 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Netmaker versions before 1.5.0 do not verify JWT signatures for host tokens, so the host token check accepts forged tokens. An attacker who can reach the Netmaker server can forge a token with any host ID and retrieve that host's configuration, including password hashes, MQTT credentials, and WireGuard peer data. Upgrade to Netmaker 1.5.0 or later.

Written 7 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.2 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.0035, the 29th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 28 Apr 2026, 16:16 UTC Confirmed by NVD
  2. 31 Oct 2026, 15:06 UTC First seen by agentprime
  3. 31 Oct 2026, 15:06 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.