Gitea draft release creation disclosing attachment metadata

{
  "id": "2ee819a3c891dc1e4ae83dfe6c3d798446b6c8179d8808114ed4e0beaa607aef",
  "url": "https://osv.dev/vulnerability/CVE-2026-110311",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Gitea draft release creation disclosing attachment metadata",
    "summary": "Creating a draft release through the API returned an `assets` list that was built from a release without an ID, which matched every attachment that was not linked to a release. A user who could create a draft release in a repository therefore received the metadata (file name, UUID, upload time, size and download count) of issue and comment attachments of repositories they could not read, and of abandoned uploads.",
    "evidence": "osv:CVE-2026-110311",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-110311",
      "aliases": [
        "CVE-2026-110311",
        "GHSA-8j56-f865-gqq2"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/go-gitea/gitea",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d7f73a1334ab7a97d4e055b7c58cdd9ac303f77a"
                },
                {
                  "fixed": "829b49c1ae96015e345f9d2a0eb1ea7acd5f31e1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "1.22.0"
                      },
                      {
                        "last_affected": "28.1.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "829b49c1ae96015e345f9d2a0eb1ea7acd5f31e1"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v28.2.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v28.1.0",
            "v28.0.0",
            "v29.0.0-dev",
            "v1.28.0-dev",
            "v1.27.0-dev",
            "v1.26.0-dev",
            "v1.25.0-dev",
            "v1.24.0-dev",
            "v1.22.0-rc1",
            "v1.23.0-dev",
            "v1.22.0-rc0",
            "v1.22.0-dev"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110311.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:28.947672120Z",
      "provider": "osv",
      "references": [
        "https://blog.gitea.com/release-of-28.2.0/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110311.json",
        "https://github.com/go-gitea/gitea/releases/tag/v28.2.0",
        "https://github.com/go-gitea/gitea/security/advisories/GHSA-8j56-f865-gqq2",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-110311",
        "https://github.com/go-gitea/gitea/pull/39743",
        "https://github.com/go-gitea/gitea/pull/39752"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-200"
        ],
        "cna_assigner": "Gitea",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110311.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-110311",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 495855,
  "published_at": "2026-10-18T18:57:14.14+00:00"
}