CVE-2026-118690 Signal K Server - Authentication Bypass

Signal K Server < 2.33.0 contains a missing authentication vulnerability caused by unauthenticated access to /skServer/ziplogs endpoint, letting remote attackers download log archives and forge admin tokens, exploit requires no authentication.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
28 October 2026
Updated
29 October 2026
Weakness
CWE-306

Vendor fix

Update to version 2.33.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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