CVE-2026-115325
Netmaker through 1.7.0 Authorization Bypass via updateExtClient Unscoped Lookup
CVSS Score
8.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-639 |
| Vendor | gravitl |
| Product | netmaker |
| Published | Oct 22, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low
Affected Versions
gravitl / netmaker
0 ≤ 1.7.0
References
github.com: https://github.com/gravitl/netmaker/issues/3875 github.com: https://github.com/gravitl/netmaker/pull/4153 github.com: https://github.com/gravitl/netmaker/commit/332d8b9bab030ee65e78b9141259e4e0e80ac4b0 github.com: https://github.com/gravitl/netmaker/blob/v1.7.0/controllers/ext_client.go#L879 github.com: https://github.com/gravitl/netmaker vulncheck.com: https://www.vulncheck.com/advisories/netmaker-through-1.7.0-authorization-bypass-via-updateextclient-unscoped-lookup
Credits
lighthousekeeper1212 (Lighthouse Research Project) 🔍 leediay153 from Viettel Post