{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.23.0"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "2a9bfbcbf0a844b999de97e601d16050a893f5fb"
            }
          ],
          "repo": "https://github.com/humansignal/label-studio",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85211.json"
  },
  "details": "Label Studio fails to apply organization filters when resolving storage URIs for tasks and projects in proxy_api.py endpoints. Attackers can access other tenants' cloud storage objects by creating a separate organization and supplying arbitrary file URIs to presign or stream bucket contents.",
  "id": "CVE-2026-85211",
  "modified": "2026-09-05T03:30:57.100688858Z",
  "published": "2026-09-03T14:12:22.489Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85211.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85211"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/label-studio-through-1.23.0-cross-organization-storage-uri-resolution"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/HumanSignal/label-studio/issues/9924"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/HumanSignal/label-studio"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/HumanSignal/label-studio/blob/1.23.0/label_studio/io_storages/proxy_api.py"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Label Studio through 1.23.0 Cross-Organization Storage URI Resolution"
}