CVE-2026-33950 | signalk-server: Privilege Escalation by Admin Role Injection via /enableSecurity

Exp

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: 2026-04-02 Last update: 2026-04-06 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-33950 is rated Exploit Available (55/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.03%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2026-33950

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2026-33950

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-21 0.06% 0.03% -0.04%
2 2026-04-08 0.05% 0.06% +0.01%
3 2026-04-03 — 0.05% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-33950

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.4 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 3.9 5.5 [email protected]

Weakness enumeration for CVE-2026-33950

GitHub Security Advisory for CVE-2026-33950

GHSA-x8hc-fqv3-7gwf · Severity: critical · Ecosystem: npm — Signal K Server: Privilege Escalation by Admin Role Injection via /enableSecurity

Affected software / configurations for CVE-2026-33950

Vendor Product Version Raw CPE
signalk signal_k_server < 2.24.0 cpe:2.3:a:signalk:signal_k_server:*:*:*:*:*:*:*:*
signalk signal_k_server 2.24.0 cpe:2.3:a:signalk:signal_k_server:2.24.0:beta1:*:*:*:*:*:*
signalk signal_k_server 2.24.0 cpe:2.3:a:signalk:signal_k_server:2.24.0:beta2:*:*:*:*:*:*
signalk signal_k_server 2.24.0 cpe:2.3:a:signalk:signal_k_server:2.24.0:beta3:*:*:*:*:*:*

References for CVE-2026-33950

cvelogic Threat Intelligence