{"id":"CVE-2026-39320","revision":"b62d0d8eeb86435e8c7532159da65b04","records":[{"revision":"b62d0d8eeb86435e8c7532159da65b04","observedAt":"2026-10-25T09:17:18.747+00:00","statement":{"source":"nvd","id":"CVE-2026-39320","aliases":[],"title":"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 logic…","description":"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 logic. By injecting unescaped regex metacharacters into the `context` parameter of a stream subscription, an attacker can force the server's Node.js event loop into a catastrophic backtracking loop when evaluating long string identifiers (like the server's self UUID). This results in a total Denial of Service (DoS) where the server CPU spikes to 100% and becomes completely unresponsive to further API or socket requests. Version 2.25.0 contains a fix.","state":0,"publishedAt":"2026-04-21T01:16:05.063+00:00","modifiedAt":"2026-06-17T10:41:54.893+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/SignalK/signalk-server/commit/215d81eb700d5419c3396a0fbf23f2e246dfac2d","https://github.com/SignalK/signalk-server/pull/2568","https://github.com/SignalK/signalk-server/releases/tag/v2.25.0","https://github.com/SignalK/signalk-server/security/advisories/GHSA-7gcj-phff-2884"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-39320","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-400","CWE-1333"],"productCriteria":["cpe:2.3:a:signalk:signal_k_server:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-04-21T01:16:05.063","lastModified":"2026-06-17T10:41:54.893"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-39320","identifiers":["CVE-2026-39320"]},"retained":false,"historicalAffected":[]}],"coverage":[]}