CVE-2026-38651

HIGH EPSS 21.5%
Published Apr 28, 20262mo ago · Modified Jun 17, 20262w ago
8.2 CVSS 3.1
High
Find Similar
Published Apr 28, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

Description

Authentication Bypass vulnerability exists in Netmaker versions prior to 1.5.0. The VerifyHostToken function in logic/jwts.go fails to validate the JWT signature when verifying host tokens. An attacker can forge a JWT signed with any arbitrary key and use it to impersonate any host in the network, gaining access to sensitive information

CVSS Details

Base Score
8.2
Exploitability
3.9
Impact
4.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
21.5% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-347

Affected Products 1

VendorProductVersionRange
netmakernetmaker* <1.5.0

References 4

  • github.com https://github.com/gravitl/netmaker/commit/5309aa70d464ef565911369714d661a61481a79b
    Patch
  • zyenra.com https://www.zyenra.com/advisories/netmaker-jwt-verification-bypass
    ExploitThird Party Advisory
  • zyenra.com https://www.zyenra.com/advisories/netmaker-jwt-verification-bypass/
    ExploitThird Party Advisory
  • zyenra.com https://www.zyenra.com/blog/netmaker-jwt-verification-bypass
    ExploitThird Party Advisory

Remediation

  • github.com https://github.com/gravitl/netmaker/commit/5309aa70d464ef565911369714d661a61481a79b
    Patch