CVE-2026-35038— signalk-server: Arbitrary Prototype Read via `from` Field Bypass
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I. Basic Information for CVE-2026-35038
Vulnerability Information
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Vulnerability Title
signalk-server: Arbitrary Prototype Read via `from` Field Bypass
Source: NVD (National Vulnerability Database)
Vulnerability Description
Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0, there is an arbitrary prototype read vulnerability via `from` field bypass. This vulnerability allows a low-privileged authenticated user to bypass prototype boundary filtering to extract internal functions and properties from the global prototype object this violates data isolation and lets a user read more than they should. This issue has been patched in version 2.24.0.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Signal K Server 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Signal K Server是Signal K开源的一个船用中央服务器。 Signal K Server 2.24.0之前版本存在信息泄露漏洞，该漏洞源于from字段绕过原型边界过滤，可能导致信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| SignalK | signalk-server | < 2.24.0 | - |
II. Public POCs for CVE-2026-35038
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · SignalK · 2026-04-02 · 4 CVEs total
| CVE-2026-33950 | 9.4 CRITICAL | signalk-server: Privilege Escalation by Admin Role Injection via /enableSecurity |
| CVE-2026-34083 | 6.1 MEDIUM | signalk-server: OAuth Authorization Code Theft via Unvalidated Host Header in OIDC Flow |
| CVE-2026-33951 | signalk-server: Unauthenticated Source Priorities Manipulation |
IV. Related Vulnerabilities
Same product: signalk-server
- CVE-2026-39320
Signal K Server has an Unauthenticated Regular Expression De - CVE-2026-34083
signalk-server: OAuth Authorization Code Theft via Unvalidat - CVE-2026-33951
signalk-server: Unauthenticated Source Priorities Manipulati - CVE-2026-33950
signalk-server: Privilege Escalation by Admin Role Injection - CVE-2026-25228
SignalK Server has Path Traversal leading to information dis
Same vendor: SignalK
- CVE-2026-39320
Signal K Server has an Unauthenticated Regular Expression De - CVE-2026-34083
signalk-server: OAuth Authorization Code Theft via Unvalidat - CVE-2026-33951
signalk-server: Unauthenticated Source Priorities Manipulati - CVE-2026-33950
signalk-server: Privilege Escalation by Admin Role Injection - CVE-2026-25228
SignalK Server has Path Traversal leading to information dis
Same weakness: CWE-20
V. Comments for CVE-2026-35038
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