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CVAT: Flawed authorization logic in endpoints related to lambda requests

Type: advisorySources: OSV

CVAT is an open source interactive video and image annotation tool for computer vision. From 2.17.0 until 2.72.0, a user with the Worker role can use predictable task-based request IDs with the lambda request retrieve and destroy endpoints to view automatic annotation requests for tasks or jobs the user cannot access and cancel requests initiated by other users. This issue is fixed in version 2.72.0.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-73221
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 04:13 UTC · Revision 1

Source evidence

CVAT: Flawed authorization logic in endpoints related to lambda requests

core-osv · Original source

Published 11 Aug 2026, 18:22 UTC

CVAT is an open source interactive video and image annotation tool for computer vision. From 2.17.0 until 2.72.0, a user with the Worker role can use predictable task-based request IDs with the lambda request retrieve and destroy endpoints to view automatic annotation requests for tasks or jobs the user cannot access and cancel requests initiated by other users. This issue is fixed in version 2.72.0.

osv:CVE-2026-73221
Complete source record
{
  "id": "b8edfa0ed740e362c0c5333853e704baf8181480a01920cefe9f65230cb17f60",
  "url": "https://osv.dev/vulnerability/CVE-2026-73221",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVAT: Flawed authorization logic in endpoints related to lambda requests",
    "summary": "CVAT is an open source interactive video and image annotation tool for computer vision. From 2.17.0 until 2.72.0, a user with the Worker role can use predictable task-based request IDs with the lambda request retrieve and destroy endpoints to view automatic annotation requests for tasks or jobs the user cannot access and cancel requests initiated by other users. This issue is fixed in version 2.72.0.",
    "evidence": "osv:CVE-2026-73221",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-73221",
      "aliases": [
        "CVE-2026-73221",
        "GHSA-m7p7-6w4m-886p"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/cvat-ai/cvat",
              "type": "GIT",
              "events": [
                {
                  "introduced": "148e60712504420560f90c8040921aae5de521ae"
                },
                {
                  "fixed": "0445d0336f9bc537dd8227b5f9be69c9ad5d11b0"
                },
                {
                  "fixed": "20a1076a0b9de47e067b121e40f16d66d373b3f7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "2.17.0"
                      },
                      {
                        "fixed": "2.72.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "20a1076a0b9de47e067b121e40f16d66d373b3f7"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "0445d0336f9bc537dd8227b5f9be69c9ad5d11b0"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.72.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.71.0",
            "v2.70.0",
            "v2.69.0",
            "v2.68.0",
            "v2.67.0",
            "v2.66.0",
            "v2.65.0",
            "v2.64.0",
            "v2.63.0",
            "v2.62.0",
            "v2.61.0",
            "v2.60.0",
            "v2.59.1",
            "v2.59.0",
            "v2.58.0",
            "v2.57.0",
            "v2.56.1",
            "v2.56.0",
            "v2.55.0",
            "v2.54.0",
            "v2.53.0",
            "v2.52.0",
            "v2.51.0",
            "v2.50.0",
            "v2.49.0",
            "v2.48.1",
            "v2.48.0",
            "v2.47.0",
            "v2.46.1",
            "v2.46.0",
            "v2.45.0",
            "v2.44.3",
            "v2.44.1",
            "v2.44.0",
            "v2.43.0",
            "v2.42.0",
            "v2.41.0",
            "v2.40.1",
            "v2.40.0",
            "v2.39.0",
            "v2.38.0",
            "v2.37.0",
            "v2.36.0",
            "v2.35.0",
            "v2.34.0",
            "v2.33.0",
            "v2.32.0",
            "v2.31.0",
            "v2.30.0",
            "v2.29.0",
            "v2.28.0",
            "v2.27.0",
            "v2.26.1",
            "v2.26.0",
            "v2.25.0",
            "v2.24.0",
            "v2.23.1",
            "v2.23.0",
            "v2.22.0",
            "v2.21.3",
            "v2.21.2",
            "v2.21.1",
            "v2.21.0",
            "v2.20.0",
            "v2.19.1",
            "v2.19.0",
            "v2.18.0",
            "v2.17.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73221.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.445228439Z",
      "provider": "osv",
      "references": [
        "https://github.com/cvat-ai/cvat/releases/tag/v2.72.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73221.json",
        "https://github.com/cvat-ai/cvat/security/advisories/GHSA-m7p7-6w4m-886p",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-73221",
        "https://github.com/cvat-ai/cvat/commit/20a1076a0b9de47e067b121e40f16d66d373b3f7",
        "https://github.com/cvat-ai/cvat/pull/10964"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-863"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73221.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-73221",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518042,
  "published_at": "2026-08-11T18:22:10.737+00:00"
}