{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/signalk-server",
          "product": "signalk-server",
          "vendor": "SignalK",
          "versions": [
            {
              "lessThan": "2.33.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "2.33.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:signalk:signal_k_server:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "2.33.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "tkurki"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Taqiyuddin Anas"
        }
      ],
      "datePublic": "2026-09-20T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Signal K Server before 2.33.0 contains a missing authentication vulnerability that allows unauthenticated remote attackers to download log archives via the /skServer/ziplogs endpoint. Attackers can extract the JWT secretKey from security.json in the ZIP, forge administrator tokens, and create persistent admin accounts for full server control."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "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:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-306",
              "description": "Missing Authentication for Critical Function",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T21:11:17.919Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "Patch Commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/SignalK/signalk-server/commit/728bab82742d16c54e50525b95dc9b6e32396107"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/SignalK/signalk-server"
        },
        {
          "name": "GitHub Security Advisory (GHSA-4w32-qx5g-cpwv)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/SignalK/signalk-server/security/advisories/GHSA-4w32-qx5g-cpwv"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/SignalK/signalk-server/blob/v2.32.0/src/interfaces/logfiles.js#L30-L91"
        },
        {
          "name": "signalk-server v2.33.0 Release Notes",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/SignalK/signalk-server/releases/tag/v2.33.0"
        },
        {
          "name": "VulnCheck Advisory: Signal K Server before 2.33.0 Missing Authentication via /skServer/ziplogs",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/signal-k-server-before-2.33.0-missing-authentication-via-skserver-ziplogs"
        }
      ],
      "title": "Signal K Server before 2.33.0 Missing Authentication via /skServer/ziplogs",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-118690",
    "datePublished": "2026-10-28T21:11:17.919Z",
    "dateReserved": "2026-10-28T17:31:29.498Z",
    "dateUpdated": "2026-10-28T21:11:17.919Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}