CVE-2026-118690 PUBLISHED

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

Assigner: VulnCheck
Reserved: 28.10.2026 Published: 28.10.2026 Updated: 28.10.2026

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 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
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	SignalK
Product	signalk-server
Versions	Default: unaffected affected from 0 to 2.33.0 (excl.) Version 2.33.0 is unaffected

CVE-2026-118690 PUBLISHED

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

Metrics

Product Status

Credits

References

Problem Types