{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "kestra",
          "vendor": "kestra-io",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.0.43"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.1.0, \u003c 1.3.19"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.43 and 1.3.19, several Kestra API endpoints accept a kestra:// URI from the client and pass it through StorageInterface.parentTraversalGuard before reading the underlying file from the local storage backend. The guard only inspects the literal URI.toString(), so a URL-encoded .. written as %2E%2E slips through. The downstream code then calls URI.getPath(), which decodes %2E%2E back to .., and the resulting path is handed to Paths.get(...) without normalization. The OS resolves the .. segments at open(2) time, so an authenticated user with a single execution can read any file the Kestra process has access to on the host filesystem (/etc/passwd, mounted secrets, other tenants\u0027 execution outputs, etc.). This vulnerability is fixed in 1.0.43 and 1.3.19."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-26T20:57:13.891Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/kestra-io/kestra/security/advisories/GHSA-3529-p4wf-xp79",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/kestra-io/kestra/security/advisories/GHSA-3529-p4wf-xp79"
        }
      ],
      "source": {
        "advisory": "GHSA-3529-p4wf-xp79",
        "discovery": "UNKNOWN"
      },
      "title": "Kestra: Path traversal via URL-encoded \"%2E%2E\" in execution and namespace file endpoints allows arbitrary file read"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-45807",
    "datePublished": "2026-06-26T20:57:13.891Z",
    "dateReserved": "2026-05-13T08:19:32.604Z",
    "dateUpdated": "2026-06-26T20:57:13.891Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-45807",
      "date": "2026-06-27",
      "epss": "0.00366",
      "percentile": "0.28462"
    }
  }
}