{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.41.3"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0f1a20e532119cb4b354840e219072e2ed277f32"
            }
          ],
          "repo": "https://github.com/budibase/budibase",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-6x9p-4r67-5gjx"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54356.json"
  },
  "details": "Budibase is an open-source low-code platform. Prior to 3.41.3, POST /api/attachments/:datasourceId/url in packages/server/src/api/routes/static.ts and packages/server/src/api/controllers/static/index.ts allows an authenticated published-app user with the BASIC role to supply attacker-controlled bucket and key values and obtain signedUrl and publicUrl values backed by stored S3 datasource credentials. This issue is fixed in version 3.41.3.",
  "id": "CVE-2026-54356",
  "modified": "2026-08-20T03:30:39.541713650Z",
  "published": "2026-08-17T20:32:05.691Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Budibase/budibase/releases/tag/3.41.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/Budibase/budibase/security/advisories/GHSA-6x9p-4r67-5gjx"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54356.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54356"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Budibase authenticated arbitrary S3 signed upload URL issuance via `/api/attachments/:datasourceId/url`"
}