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Vulnerability record · CVE-2026-35038 · published 2 April 2026

CVE-2026-35038: Signalk signal k server improper input validation vulnerability

Signalk · Signal K Server

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.

2.1 CVSS 4.0 Low EPSS 0.41% · top 66.7% CWE-20 · Improper input validationCWE-125 · Out-of-bounds read
2.1CVSS 4.0 base score
0.41%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
21 Jul 2026Last modified by NVD

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.

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/SignalK/signalk-server/releases/tag/v2.24.0 ProductRelease Notes
https://github.com/SignalK/signalk-server/security/advisories/GHSA-qh3j-mrg8-f234 ExploitMitigationVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-35038), CISA KEV, FIRST EPSS (scores of 2026-10-11). This page is refreshed as NVD updates the record.