CVE-2026-35038

signalk-server: Arbitrary Prototype Read via `from` Field Bypass

State: Published
Severity: 2.1 Low
Published: Apr 2, 2026
Updated: Apr 2, 2026
Reserved: Mar 31, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	2.1 Low	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P	GitHub_M

Weaknesses

CWE-20 Improper Input Validation
CWE-125 Out-of-bounds Read
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

Product	Versions
signalk-serverSignalK	< 2.24.0Affected

References

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