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    CVE-2026-38651

    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:Apr 28, 2026
    Last Modified:May 18, 2026
    EPS:Apr 28, 2026
    EPSS Score:0.00028
    CVSS Score:8.2

    Affected Products

    Vendor
    Gravitl
    Product
    Netmaker
    Vendor
    Netmaker
    Product
    Netmaker

    Exploits

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

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-463 Padding Oracle Crypto Attack
    CAPEC-475 Signature Spoofing by Improper Validation

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High