Vulnerability · Published Mar 7, 2026 · Assigned by GitHub_M

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

High 8.7

In plain English

A high-severity security flaw in netmaker from gravitl. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.7High

Exploit odds (30 days)0.4%top 68.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/gravitl/netmaker	1.2.0	GHSA-rhr9-hgcm-x289
Go	github.com/gravitl/netmaker	1.2.0	GO-2026-4608

Affected products (as reported)

Vendor	Product	Versions
gravitl	netmaker	< 1.2.0

Weakness: CWE-404 · 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

References

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