VulnerabilityAnalyzed
CVE-2026-38651
Authentication Bypass vulnerability exists in Netmaker versions prior to 1.5.0.
HIGH 8.2EPSS 0.30%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 8.2 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
- EPSS
- 0.30% probability · 22th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-347
- Affected
- netmaker/netmaker
- Source
- cve@mitre.org
References
- https://github.com/gravitl/netmaker/commit/5309aa70d464ef565911369714d661a61481a79bPatch
- https://www.zyenra.com/advisories/netmaker-jwt-verification-bypassExploit, Third Party Advisory
- https://www.zyenra.com/blog/netmaker-jwt-verification-bypassExploit, Third Party Advisory
- https://www.zyenra.com/advisories/netmaker-jwt-verification-bypass/Exploit, Third Party Advisory
- https://www.zyenra.com/blog/netmaker-jwt-verification-bypassExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.