CVE-2026-118690

critical

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://www.vulncheck.com/advisories/signal-k-server-before-2.33.0-missing-authentication-via-skserver-ziplogs

https://github.com/SignalK/signalk-server/security/advisories/GHSA-4w32-qx5g-cpwv

https://github.com/SignalK/signalk-server/releases/tag/v2.33.0

https://github.com/SignalK/signalk-server/commit/728bab82742d16c54e50525b95dc9b6e32396107

https://github.com/SignalK/signalk-server/blob/v2.32.0/src/interfaces/logfiles.js#L30-L91

https://github.com/SignalK/signalk-server

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112491

Details

Source: Mitre, NVD

Published: 2026-10-28

Updated: 2026-10-29

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: Critical

EPSS

EPSS: 0.00688