CVE-2026-115325

High

Description

Netmaker through 1.7.0 contains an authorization bypass vulnerability in the updateExtClient handler that allows network-scoped users to modify external clients on other networks. Attackers with external client permissions on one network can send PUT requests to /api/extclients/{network}/{clientid} to replace public keys, disable clients, and obtain WireGuard private keys.

SeverityHigh

CVSS8.3

Exploit probability—

ProductGravitl Netmaker

PublishedOct 22, 2026

First seenOct 22, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Patches

github.com/gravitl/netmaker/pull/4153
github.com/gravitl/netmaker/commit/332d8b9bab030ee65e78b9141259e4e0e80ac4b0

Affected products

Product	Affected versions	Fixed in
gravitl netmaker	v ≤ 1.7.0	—

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