{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "8.2.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "63d487d2a4a2a0e36af8c0ccb888cd23725bf7f2"
            },
            {
              "fixed": "296e63811479e55c8813a2691c3e577822800e22"
            }
          ],
          "repo": "https://github.com/chocobozzz/peertube",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-g9p4-f7h8-hc86"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73090.json"
  },
  "details": "PeerTube is an ActivityPub-federated video streaming platform. Prior to 8.2.2, processUpdateActivity and processUpdateVideo accept an ActivityPub Update containing a Video object without verifying that byActor.url is authorized for the host in videoObject.id, allowing a malicious federated server to rewrite another server's video metadata, visibility, media file, and HLS URLs. This issue is fixed in version 8.2.2.",
  "id": "CVE-2026-73090",
  "modified": "2026-09-11T03:30:59.843581926Z",
  "published": "2026-08-11T17:19:30.272Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Chocobozzz/PeerTube/releases/tag/v8.2.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73090.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/Chocobozzz/PeerTube/security/advisories/GHSA-g9p4-f7h8-hc86"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73090"
    },
    {
      "type": "FIX",
      "url": "https://github.com/Chocobozzz/PeerTube/commit/63d487d2a4a2a0e36af8c0ccb888cd23725bf7f2"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "PeerTube: Cross-origin remote video takeover via Update activity"
}