CVE-2026-118690
CRITICAL
NVD
CVSS Score
9.8
Severity
CRITICAL
Published
Oct 28, 2026
Vendor
unknown
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.
References
- https://github.com/SignalK/signalk-server
- https://github.com/SignalK/signalk-server/blob/v2.32.0/src/interfaces/logfiles.js#L30-L91
- https://github.com/SignalK/signalk-server/commit/728bab82742d16c54e50525b95dc9b6e32396107
- https://github.com/SignalK/signalk-server/releases/tag/v2.33.0
- https://github.com/SignalK/signalk-server/security/advisories/GHSA-4w32-qx5g-cpwv