Patchfirst
CVE-2026-118690 Critical · 9.8 EPSS 0.7%

Signal K Server before 2.33.0 contains a missing authentication vulnerability that allows unauthenticated remote…

SignalK · signalk-server

Summary

Signal K Server versions before 2.33.0 have a missing authentication flaw in the server's /skServer/ziplogs endpoint, which is the component that serves log archives. A remote attacker with only network access to the server and no credentials can download those log archives, and the flaw lets them obtain the JWT signing secret from the security configuration inside the archive, forge administrator tokens, and create persistent admin accounts for full control of the server.

Official description · NVD

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.

Breakdown
18.5 / 100
Exploited
Not confirmed
Reports
0
Tactics
0/15

Disclosed on 28 Oct 2026. No public exploit code or confirmed exploitation is recorded.

techniques

No techniques linked

No ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.

What security researchers reported

Not named in any threat report yet

Also mentioned in 2 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

6 links, grouped by NVD tag
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