{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:kestra:kestra:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.0.43"
              },
              {
                "introduced": "1.1.0"
              },
              {
                "fixed": "1.3.19"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "27c0064c05c37f604b97f667dc15f06113785a13"
            },
            {
              "introduced": "1e670b5e7e92f89533ee17d564263578b0d5ec8c"
            },
            {
              "fixed": "82cb2d921d9800179597ec324a5fd9df593b644b"
            }
          ],
          "repo": "https://github.com/kestra-io/kestra",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-3529-p4wf-xp79"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45807.json"
  },
  "details": "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' execution outputs, etc.). This vulnerability is fixed in 1.0.43 and 1.3.19.",
  "id": "CVE-2026-45807",
  "modified": "2026-07-15T01:49:08.727409120Z",
  "published": "2026-06-26T20:57:13.891Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45807.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/kestra-io/kestra/security/advisories/GHSA-3529-p4wf-xp79"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45807"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Kestra: Path traversal via URL-encoded \"%2E%2E\" in execution and namespace file endpoints allows arbitrary file read"
}