CVSS 3.1
8.2 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:NCVE-2026-38651
High (8.2) in netmaker netmaker. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in github.com/gravitl/netmaker 1.5.0.
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
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-31)
- CWE
- CWE-347
- Published
- Modified
- Record from
- the NVD, synced
Affected
- netmaker:netmaker
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-qpv2-rwc8-c993 | Go | github.com/gravitl/netmaker | <1.5.0 | 1.5.0 |
| GO-2026-5588 | Go | github.com/gravitl/netmaker | <1.5.0 | 1.5.0 |
References
- https://github.com/gravitl/netmaker/commit/5309aa70d464ef565911369714d661a61481a79b
- https://www.zyenra.com/advisories/netmaker-jwt-verification-bypass
- https://www.zyenra.com/blog/netmaker-jwt-verification-bypass
- https://www.zyenra.com/advisories/netmaker-jwt-verification-bypass/
- https://www.zyenra.com/blog/netmaker-jwt-verification-bypass