CVE-2026-38651

HIGH8.2

Authentication Bypass vulnerability exists in Netmaker versions prior to 1

Published Apr 28, 2026

Modified 2 weeks ago

Details

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

References

WEB

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

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-38651

WEB

https://www.zyenra.com/advisories/netmaker-jwt-verification-bypass

DETECTION

https://www.zyenra.com/advisories/netmaker-jwt-verification-bypass/

DETECTION

https://www.zyenra.com/blog/netmaker-jwt-verification-bypass

CVSS Analysis