Resource exhaustion in Signalk Signal_k_server
CVE-2026-39320
Signal K Server is a server application that runs on a central hub in a boat. Versions prior to 2.25.0 are vulnerable to an unauthenticated Regular Expression Denial of Service (ReDoS) attack within the WebSocket subscription handling logi…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.004 (34.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Signalk Signal_k_server
- Signalk Signalk-server — versions < 2.25.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-39320?
- CVE-2026-39320 is a high-severity vulnerability in Signalk Signal_k_server, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-04-21.
- How severe is CVE-2026-39320?
- High severity. CVSS v3 base score is 7.5 out of 10.