CVE-2026-118690

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

Published Oct 28, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Signal K Server before 2.33.0 Missing Authentication via /skServer/ziplogs
First Time appeared Signalk
Signalk signal K Server
Weaknesses CWE-306
CPEs cpe:2.3:a:signalk:signal_k_server:*:*:*:*:*:*:*:*
Vendors & Products Signalk
Signalk signal K Server
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 29, 2026, 5:22 PM
Reserved
Oct 28, 2026, 5:31 PM
Status
Deferred
Published
Oct 28, 2026, 10:17 PM
Modified
Oct 29, 2026, 6:17 PM