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TI-2026-79262 Aliases CVE-2026-115325GHSA-f2gq-2gr7-rjjc

Authorization bypass in Netmaker lets users modify other networks' clients

Priority MEDIUM 40CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

Netmaker through 1.7.0 contains an authorization bypass in the updateExtClient handler that lets users scoped to one network modify external clients on other networks. An attacker with external client permissions on one network can send PUT requests to an endpoint that uses an unscoped lookup (CWE-639) to replace public keys, disable clients, and obtain WireGuard private keys. The attack requires low privileges over the network and no user interaction.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00362 30th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
gravitlnetmakerup to 1.7.0—No fix listedCNA
  • netmaker Vendorgravitl Affected up to 1.7.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Netmaker.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-22 Threatist record created from CVE-2026-115325
  2. 2026-10-22 Alias added: GHSA-f2gq-2gr7-rjjc
  3. 2026-10-23 Priority changed: MEDIUM → LOW
  4. 2026-10-23 CISA SSVC decision points changed
  5. 2026-10-25 Priority changed: LOW → MEDIUM

References

Patch 2

Other 3

  • TI-2026-56044 Netmaker through 1.6.0 Improper Certificate Validation in SMTP Client CVSS 4.0HIGH 8.3
  • TI-2022-00579 Use of Hard-coded Cryptographic Key in gravitl/netmaker CVSS 3.1CRITICAL 9.8
  • TI-2023-15381 Netmaker has Hardcoded DNS Secret Key CVSS 3.1HIGH 7.5
  • TI-2026-23357 Netmaker: Denial of Service via Server Shutdown Endpoint CVSS 4.0HIGH 8.7
  • TI-2026-23313 Netmaker: Service User with Network Access Can Access config files with WireGuard Private Keys CVSS 4.0HIGH 8.7
  • TI-2022-07702 Use of Hard-coded Cryptographic Key in Netmaker CVSS 3.1HIGH 8.8
See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences