{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:kestra:kestra:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.0.45"
              },
              {
                "introduced": "1.1.0"
              },
              {
                "fixed": "1.3.21"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "670b719eb5e0fc579ad9044551223642c24335dd"
            },
            {
              "introduced": "1e670b5e7e92f89533ee17d564263578b0d5ec8c"
            },
            {
              "fixed": "2541c53230388d76a9acc1b43245ebce31312a88"
            }
          ],
          "repo": "https://github.com/kestra-io/kestra",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-r6v3-xxwj-9h42"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53577.json"
  },
  "details": "Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, the previewFileFromExecution endpoint (GET /api/v1/{tenant}/executions/{executionId}/file/preview) contains an access control bypass that allows any authenticated user to read output files from any other execution within the same tenant, bypassing execution-level and namespace-level isolation. This vulnerability is fixed in 1.0.45 and 1.3.21.",
  "id": "CVE-2026-53577",
  "modified": "2026-07-15T01:49:14.944678907Z",
  "published": "2026-06-26T20:52:04.006Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53577.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/kestra-io/kestra/security/advisories/GHSA-r6v3-xxwj-9h42"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53577"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Kestra: Cross-Execution File Read via Preview Endpoint (IDOR)"
}