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    CVE-2026-33950

    Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0-beta.4, there is a privilege escalation vulnerability by Admin Role Injection via /enableSecurity. An unauthenticated attacker can gain full Administrator access to the SignalK server at any time, allowing them to modify sensitive vessel routing data, alter server configurations, and access restricted endpoints. This issue has been patched in version 2.24.0-beta.4.

    Published:Apr 2, 2026
    Last Modified:Apr 7, 2026
    EPS:Apr 2, 2026
    EPSS Score:0.00049
    CVSS Score:9.4

    Affected Products

    Vendor
    Signalk
    Product
    Signal K Server
    Vendor
    Signalk
    Product
    Signalk-server

    Exploits

    https://github.com/SignalK/signalk-server/security/advisories/GHSA-x8hc-fqv3-7gwf

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs
    CAPEC-104 Cross Zone Scripting
    CAPEC-127 Directory Indexing
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-17 Using Malicious Files
    CAPEC-39 Manipulating Opaque Client-based Data Tokens
    CAPEC-402 Bypassing ATA Password Security
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-5 Blue Boxing
    CAPEC-51 Poison Web Service Registry
    CAPEC-59 Session Credential Falsification through Prediction
    CAPEC-60 Reusing Session IDs (aka Session Replay)
    CAPEC-647 Collect Data from Registries
    CAPEC-665 Exploitation of Thunderbolt Protection Flaws
    CAPEC-668 Key Negotiation of Bluetooth Attack (KNOB)
    CAPEC-76 Manipulating Web Input to File System Calls
    CAPEC-77 Manipulating User-Controlled Variables
    CAPEC-87 Forceful Browsing

    Related CVEs

    CVE-2026-41893 (CVSS 8.7) — Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.25.0, the HTT…
    CVE-2026-39320 (CVSS 7.5) — Signal K Server is a server application that runs on a central hub in a boat. Versions prior to 2.25.0 are vul…
    CVE-2026-35038 (CVSS 2.1) — Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0, there i…
    CVE-2026-34083 (CVSS 6.1) — Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0, SignalK…
    CVE-2026-33951 (CVSS 6.9) — Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0-beta.1, …
    CVE-2026-25228 (CVSS 5) — Signal K Server is a server application that runs on a central hub in a boat. Prior to 2.20.3, a path traversa…
    CVE-2026-23515 (CVSS 9.9) — Signal K Server is a server application that runs on a central hub in a boat. Prior to 1.5.0, a command inject…
    CVE-2025-69203 (CVSS 6.3) — Signal K Server is a server application that runs on a central hub in a boat. Versions prior to 2.19.0 of the …
    CVE-2025-68619 (CVSS 7.3) — Signal K Server is a server application that runs on a central hub in a boat. Versions prior to 2.19.0 of the …
    CVE-2025-68620 (CVSS 9.1) — Signal K Server is a server application that runs on a central hub in a boat. Versions prior to 2.19.0 expose …

    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