Gitea repository media API stored XSS

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-96594",
    "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
    "assignerShortName": "Gitea",
    "dateUpdated": "2026-10-06T21:36:38.491Z",
    "dateReserved": "2026-10-04T22:02:04.871Z",
    "datePublished": "2026-10-06T21:36:38.491Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
        "shortName": "Gitea",
        "dateUpdated": "2026-10-06T21:36:38.491Z"
      },
      "title": "Gitea repository media API stored XSS",
      "descriptions": [
        {
          "lang": "en",
          "value": "The Gitea API endpoint `GET /api/v1/repos/{owner}/{repo}/media/{filepath}` wrote files of up to 1 KiB that are stored directly in Git, not in LFS, to the response without the content type and disposition headers Gitea uses for user content. An HTML file committed to a repository was therefore rendered by the browser on the Gitea origin. A user who can push to a repository could run JavaScript in the session of a victim who opens the media URL and act with the victim's permissions."
        }
      ],
      "affected": [
        {
          "vendor": "Gitea",
          "product": "Gitea",
          "packageName": "gitea.dev",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "28.0.0"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
              "cweId": "CWE-79",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-94rx-fqm6-q23v",
          "name": "GitHub Security Advisory GHSA-94rx-fqm6-q23v",
          "tags": [
            "vendor-advisory"
          ]
        },
        {
          "url": "https://github.com/go-gitea/gitea/pull/39501",
          "name": "Fix: go-gitea/gitea pull request #39501",
          "tags": [
            "patch"
          ]
        },
        {
          "url": "https://github.com/go-gitea/gitea/pull/39507",
          "name": "Fix backport to release/v28: go-gitea/gitea pull request #39507",
          "tags": [
            "patch"
          ]
        },
        {
          "url": "https://blog.gitea.com/release-of-28.1.0/",
          "name": "Gitea 28.1.0 release announcement",
          "tags": [
            "release-notes"
          ]
        },
        {
          "url": "https://github.com/go-gitea/gitea/releases/tag/v28.1.0",
          "name": "go-gitea/gitea v28.1.0 release",
          "tags": [
            "release-notes"
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "https://github.com/KadirArslan",
          "type": "reporter"
        },
        {
          "lang": "en",
          "value": "https://github.com/cruzzer",
          "type": "reporter"
        },
        {
          "lang": "en",
          "value": "https://github.com/silverwind",
          "type": "remediation developer"
        },
        {
          "lang": "en",
          "value": "https://github.com/bircni",
          "type": "remediation developer"
        }
      ]
    }
  }
}