CVE•Published 2026-04-02•Modified 2026-04-06•1 article on news•6 live references•NVD data
CVE-2026-33950Signalk · Signal_k_server
Vulnerability data via NVD (ingested)
CVSS v3.1
9.4
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS percentile
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Weaknesses (CWE)
Description
Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0-beta.4, there is a privilege escalation vulnerability by Admin Role Injection via /enableSecurity. An unauthenticated attacker can gain full Administrator access to the SignalK server at any time, allowing them to modify sensitive vessel routing data, alter server configurations, and access restricted endpoints. This issue has been patched in version 2.24.0-beta.4.
Timeline
Published 2026-04-02
Modified 2026-04-06
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-33950Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Signalk Signal K Server"All exposed Signalk Signal K Server instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Signal K Server"HTTP body or banner mentions "Signal K Server" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-33950Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-33950Censys host search filtered to this CVE id.
grep.app
CVE-2026-33950Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-33950GitHub code search for direct mentions.
Google dork
"CVE-2026-33950" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-33950 on GitHub.