# Signal K Server vulnerabilities Source: https://junglewise.ai/threats/technologies/signal-k-server Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 12 November 2026, 20:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/signal-k-server.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 7 vulnerabilities in Signal K Server: 2 in the last 7 days and 4 in the last 90 days, 3 of them critical and 0 exploited in the wild. The most recent, Signal K Server buffered logs exposure in unauthenticated WebSocket, was published on 12 November 2026. 2 vulnerabilities in the last four weeks, up from none in the four before. 1 critical against 0. ## Counts - Last 7 days: 2 - Last 30 days: 4 - Last 90 days: 4 - All time: 7 (3 critical, 0 exploited in the wild) ## About Signal K Server Web server that processes and distributes vessel data using the Signal K protocol. ## Latest Signal K Server vulnerabilities - [Signal K Server buffered logs exposure in unauthenticated WebSocket](https://junglewise.ai/threats/signal-k-server-buffered-logs-exposed-to-unauthenticated-websocket-b7032aad) (medium, CVSS 5.3, published 12 Nov 2026) - [CVE-2026-123807: Signal K Server path traversal in REST resources endpoint](https://junglewise.ai/threats/cve-2026-123807-signal-k-server-is-a-server-application-that-runs-on-a-central) (critical, CVSS 9.8, published 9 Nov 2026) - [CVE-2026-118690: Signal K Server missing authentication in log download](https://junglewise.ai/threats/cve-2026-118690-signal-k-server-before-2-33-0-contains-a-missing-authentication) (critical, CVSS 9.8, published 28 Oct 2026) - [CVE-2026-115752: Signal K Server SSRF in App Store icon fetcher](https://junglewise.ai/threats/cve-2026-115752-signal-k-server-from-2-28-0-beta-2-before-2-34-0-contains-a) (medium, CVSS 4.2, published 23 Oct 2026) - [CVE-2026-41893: SignalK Signal K Server brute-force protection bypass in WebSocket login](https://junglewise.ai/threats/cve-2026-41893-signalk-signal-k-server-brute-force-protection-bypass-in) (high, CVSS 7.5, published 9 May 2026) - [CVE-2026-33951: SignalK Signal K Server authentication bypass in sourcePriorities endpoint](https://junglewise.ai/threats/cve-2026-33951-signalk-signal-k-server-authentication-bypass-in-sourcepriorities) (high, CVSS 7.5, published 2 Apr 2026) - [CVE-2026-33950: SignalK Signal K Server privilege escalation in /enableSecurity](https://junglewise.ai/threats/cve-2026-33950-signalk-signal-k-server-privilege-escalation-in-enablesecurity) (critical, CVSS 9.4, published 2 Apr 2026) ## Most severe Signal K Server vulnerabilities - [CVE-2026-123807: Signal K Server path traversal in REST resources endpoint](https://junglewise.ai/threats/cve-2026-123807-signal-k-server-is-a-server-application-that-runs-on-a-central) (critical, CVSS 9.8, published 9 Nov 2026) - [CVE-2026-118690: Signal K Server missing authentication in log download](https://junglewise.ai/threats/cve-2026-118690-signal-k-server-before-2-33-0-contains-a-missing-authentication) (critical, CVSS 9.8, published 28 Oct 2026) - [CVE-2026-33950: SignalK Signal K Server privilege escalation in /enableSecurity](https://junglewise.ai/threats/cve-2026-33950-signalk-signal-k-server-privilege-escalation-in-enablesecurity) (critical, CVSS 9.4, published 2 Apr 2026) - [CVE-2026-33951: SignalK Signal K Server authentication bypass in sourcePriorities endpoint](https://junglewise.ai/threats/cve-2026-33951-signalk-signal-k-server-authentication-bypass-in-sourcepriorities) (high, CVSS 7.5, published 2 Apr 2026) - [CVE-2026-41893: SignalK Signal K Server brute-force protection bypass in WebSocket login](https://junglewise.ai/threats/cve-2026-41893-signalk-signal-k-server-brute-force-protection-bypass-in) (high, CVSS 7.5, published 9 May 2026) - [Signal K Server buffered logs exposure in unauthenticated WebSocket](https://junglewise.ai/threats/signal-k-server-buffered-logs-exposed-to-unauthenticated-websocket-b7032aad) (medium, CVSS 5.3, published 12 Nov 2026) - [CVE-2026-115752: Signal K Server SSRF in App Store icon fetcher](https://junglewise.ai/threats/cve-2026-115752-signal-k-server-from-2-28-0-beta-2-before-2-34-0-contains-a) (medium, CVSS 4.2, published 23 Oct 2026) ## Vulnerabilities per week 2 vulnerabilities in the last four weeks, up from none in the four before. 1 critical against 0. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 1 | 0 | 0 | | 26 Oct 2026 | 1 | 1 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 2 | 1 | 0 | ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Signal K Server vulnerabilities", https://junglewise.ai/threats/technologies/signal-k-server, 12 November 2026.