CVE-2026-118690 Details
Description
Signal K Server before 2.33.0 contains a missing authentication vulnerability that allows unauthenticated remote attackers to download log archives via the /skServer/ziplogs endpoint. Attackers can extract the JWT secretKey from security.json in the ZIP, forge administrator tokens, and create persistent admin accounts for full server control.
A missing authentication vulnerability has been identified in Signal K Server versions prior to 2.33.0. This vulnerability allows unauthenticated remote attackers to access the '/skServer/ziplogs' endpoint, which delivers log archives containing sensitive information. Specifically, the ZIP file includes 'security.json', which holds the JWT secret key. Attackers can use this key to forge administrator tokens, create persistent admin accounts, and gain full control over the server. The issue arises because the 'ziplogs' endpoint lacks proper authentication, leaving it exposed to unauthorized access.
Users can update to Signal K Server version 2.33.0 or later, where this vulnerability has been patched. Instructions for updating are available in the Signal K Server documentation.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 28, 2026CISA-ADP
Assessed Oct 29, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-306 | Missing Authentication for Critical Function | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Signal K Server | < 2.33.0 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 29, 2026 | CVE Modified | CISA-ADP |
| Oct 28, 2026 | New CVE Received | [email protected] |