Security advisory

{
  "id": "c8ae620a7149c6a4866851cbed1543c9cc688cbb44169cade6ba2c6023edfca7",
  "url": "https://osv.dev/vulnerability/CVE-2021-29490",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-29490",
    "summary": "Jellyfin is a free software media system that provides media from a dedicated server to end-user devices via multiple apps. Verions prior to 10.7.3 vulnerable to unauthenticated Server-Side Request Forgery (SSRF) attacks via the imageUrl parameter. This issue potentially exposes both internal and external HTTP servers or other resources available via HTTP `GET` that are visible from the Jellyfin server. The vulnerability is patched in version 10.7.3. As a workaround, disable external access to the API endpoints `/Items/*/RemoteImages/Download`, `/Items/RemoteSearch/Image` and `/Images/Remote` via reverse proxy, or limit to known-friendly IPs.",
    "evidence": "osv:CVE-2021-29490",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-29490",
      "aliases": [
        "CVE-2021-29490",
        "GHSA-rgjw-4fwc-9v96"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jellyfin/jellyfin",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3566d21ad14f716530969fb4ea85641035e67f6f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:jellyfin:jellyfin:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "10.7.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v10.7.2",
            "v10.7.1",
            "v10.7.0",
            "v10.7.0-rc4",
            "v10.7.0-rc3",
            "v10.7.0-rc2",
            "v10.7.0-rc1",
            "v10.6.0",
            "v10.5.0",
            "v10.4.0",
            "v10.0.1",
            "v10.0.0",
            "v10.0.2",
            "v3.5.2-5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-29490.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/jellyfin/jellyfin-web",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0f0593f2600d60d241eb0dc964f1fc25fddecd3e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:jellyfin:jellyfin:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "10.7.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v10.7.2",
            "v10.7.1",
            "v10.7.0",
            "v10.7.0-rc4",
            "v10.7.0-rc3",
            "v10.7.0-rc2",
            "v10.7.0-rc1",
            "v10.6.0",
            "v10.5.0",
            "v10.4.0",
            "v10.3.0-rc1",
            "v10.1.0",
            "v10.0.1",
            "v10.0.0",
            "v3.5.2-5",
            "v3.5.2-4",
            "v3.5.2-3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-29490.json"
          }
        }
      ],
      "modified": "2026-10-24T10:50:41.411398728Z",
      "provider": "osv",
      "references": [
        "https://github.com/jellyfin/jellyfin/security/advisories/GHSA-rgjw-4fwc-9v96"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-29490",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 442469,
  "published_at": "2021-05-06T13:15:12.493+00:00"
}