CVE-2026-33950 (GCVE-0-2026-33950)

Vulnerability from cvelistv5 – Published: 2026-04-02 16:08 – Updated: 2026-04-03 18:02
VLAI
Title
signalk-server: Privilege Escalation by Admin Role Injection via /enableSecurity
Summary
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.
Severity
9.4 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-285 - Improper Authorization
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
  • CWE-862 - Missing Authorization
Assigner
References
Impacted products
Vendor Product Version
SignalK signalk-server Affected: < 2.24.0-beta.4
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-33950",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-03T18:00:30.341852Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-03T18:02:34.324Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "signalk-server",
          "vendor": "SignalK",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.24.0-beta.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 9.4,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-285",
              "description": "CWE-285: Improper Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-288",
              "description": "CWE-288: Authentication Bypass Using an Alternate Path or Channel",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862: Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-02T16:08:59.415Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/SignalK/signalk-server/security/advisories/GHSA-x8hc-fqv3-7gwf",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/SignalK/signalk-server/security/advisories/GHSA-x8hc-fqv3-7gwf"
        },
        {
          "name": "https://github.com/SignalK/signalk-server/releases/tag/v2.24.0-beta.4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/SignalK/signalk-server/releases/tag/v2.24.0-beta.4"
        }
      ],
      "source": {
        "advisory": "GHSA-x8hc-fqv3-7gwf",
        "discovery": "UNKNOWN"
      },
      "title": "signalk-server: Privilege Escalation by Admin Role Injection via /enableSecurity"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-33950",
    "datePublished": "2026-04-02T16:08:59.415Z",
    "dateReserved": "2026-03-24T19:50:52.105Z",
    "dateUpdated": "2026-04-03T18:02:34.324Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-33950",
      "date": "2026-07-31",
      "epss": "0.00418",
      "percentile": "0.3443"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-33950\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-04-02T17:16:22.993\",\"lastModified\":\"2026-07-24T21:10:00.143\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"},{\"lang\":\"es\",\"value\":\"Signal K Server es una aplicaci\u00f3n de servidor que se ejecuta en un concentrador central en un barco. Antes de la versi\u00f3n 2.24.0-beta.4, existe una vulnerabilidad de escalada de privilegios por inyecci\u00f3n de rol de administrador a trav\u00e9s de /enableSecurity. Un atacante no autenticado puede obtener acceso completo de Administrador al servidor SignalK en cualquier momento, permiti\u00e9ndole modificar datos sensibles de enrutamiento de la embarcaci\u00f3n, alterar configuraciones del servidor y acceder a puntos finales restringidos. Este problema ha sido parcheado en la versi\u00f3n 2.24.0-beta.4.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"SignalK\",\"product\":\"signalk-server\",\"versions\":[{\"version\":\"\u003c 2.24.0-beta.4\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L\",\"baseScore\":9.4,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":5.5}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-04-03T18:00:30.341852Z\",\"id\":\"CVE-2026-33950\",\"options\":[{\"exploitation\":\"poc\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-285\"},{\"lang\":\"en\",\"value\":\"CWE-288\"},{\"lang\":\"en\",\"value\":\"CWE-862\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:signalk:signal_k_server:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"2.24.0\",\"matchCriteriaId\":\"64F9BA25-5552-4477-84F9-83E71B2CA56F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:signalk:signal_k_server:2.24.0:beta1:*:*:*:*:*:*\",\"matchCriteriaId\":\"2484CB8F-BFFE-4F61-ACE2-A59F1F817F42\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:signalk:signal_k_server:2.24.0:beta2:*:*:*:*:*:*\",\"matchCriteriaId\":\"D5464B6D-9FB4-4D67-B182-A312E3110AEF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:signalk:signal_k_server:2.24.0:beta3:*:*:*:*:*:*\",\"matchCriteriaId\":\"B521B34B-9F81-46E4-88BB-617A3D8A653E\"}]}]}],\"references\":[{\"url\":\"https://github.com/SignalK/signalk-server/releases/tag/v2.24.0-beta.4\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Product\",\"Release Notes\"]},{\"url\":\"https://github.com/SignalK/signalk-server/security/advisories/GHSA-x8hc-fqv3-7gwf\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2026-04-03T16:59:29+00:00",
      "cve": "CVE-2026-33950",
      "id": "CVE-2026-33950",
      "initial_release_date": "2026-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "signalk-server: Privilege Escalation by Admin Role Injection via /enableSecurity",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33950.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-33950\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-03T18:00:30.341852Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-03T18:00:56.514Z\"}}], \"cna\": {\"title\": \"signalk-server: Privilege Escalation by Admin Role Injection via /enableSecurity\", \"source\": {\"advisory\": \"GHSA-x8hc-fqv3-7gwf\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.4, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"SignalK\", \"product\": \"signalk-server\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 2.24.0-beta.4\"}]}], \"references\": [{\"url\": \"https://github.com/SignalK/signalk-server/security/advisories/GHSA-x8hc-fqv3-7gwf\", \"name\": \"https://github.com/SignalK/signalk-server/security/advisories/GHSA-x8hc-fqv3-7gwf\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/SignalK/signalk-server/releases/tag/v2.24.0-beta.4\", \"name\": \"https://github.com/SignalK/signalk-server/releases/tag/v2.24.0-beta.4\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-285\", \"description\": \"CWE-285: Improper Authorization\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-288\", \"description\": \"CWE-288: Authentication Bypass Using an Alternate Path or Channel\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-862\", \"description\": \"CWE-862: Missing Authorization\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-04-02T16:08:59.415Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-33950\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-03T18:02:34.324Z\", \"dateReserved\": \"2026-03-24T19:50:52.105Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-04-02T16:08:59.415Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.