Home

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

PUBLISHED Reserved 2026-04-06 | Published 2026-04-28 | Updated 2026-04-28 | Assigner mitre

References

www.zyenra.com/advisories/netmaker-jwt-verification-bypass/ exploit

www.zyenra.com/blog/netmaker-jwt-verification-bypass exploit

github.com/...ommit/5309aa70d464ef565911369714d661a61481a79b

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

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

cve.org (CVE-2026-38651)

nvd.nist.gov (CVE-2026-38651)

Download JSON