CVE-2026-118690
CVE-2026-118690 · Signal K Server before 2.33.0 Missing Authentication via /skServer/ziplogs
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 9.3 · Critical · EPSS 0.7% · Fix available
- Published
- Updated
Affected products and versions
signalk-server
- Versions
- ≥ 0, < 2.33.0: Affected (semver)
- 2.33.0: Not affected (semver)
Update to 2.33.0
Original sources
- https://github.com/SignalK/signalk-server/commit/728bab82742d16c54e50525b95dc9b6e32396107
- https://github.com/SignalK/signalk-server
- https://github.com/SignalK/signalk-server/security/advisories/GHSA-4w32-qx5g-cpwv
- https://github.com/SignalK/signalk-server/blob/v2.32.0/src/interfaces/logfiles.js#L30-L91
- https://github.com/SignalK/signalk-server/releases/tag/v2.33.0
- https://www.vulncheck.com/advisories/signal-k-server-before-2.33.0-missing-authentication-via-skserver-ziplogs
- https://nvd.nist.gov/vuln/detail/CVE-2026-118690