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CVE-2026-118690EUVD-2026-112491

Signal K Server before 2.33.0 Missing Authentication via /skServer/ziplogs

Published
Last modified
Status
published
Known exploitation
Not listed in CISA KEV
Fix
Fixed in 2.33.0
Public exploit
None on Exploit-DB

Summary

Signal K Server, an open-source marine data server, is affected by this flaw, which lets unauthenticated remote attackers download log archives and extract the JWT secret key. With that key, attackers can forge administrator tokens and create persistent admin accounts, gaining full control of the server.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original 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.

Affected versions

  • SignalK signalk-server

    fixed in 2.33.0

References 6

GitHub · SignalK/signalk-server

vulncheck.com