LinkWarden: Server-Side Request Forgery (SSRF) in Link Creation via fetchTitleAndHeaders Function

{
  "id": "f7db3218ac927a51185e6965bd3bc59bd831b97f6bd69ca5d6f32de6d4ee46b3",
  "url": "https://osv.dev/vulnerability/CVE-2026-44313",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "LinkWarden: Server-Side Request Forgery (SSRF) in Link Creation via fetchTitleAndHeaders Function",
    "summary": "Linkwarden is a self-hosted, open-source collaborative bookmark manager to collect, organize and archive webpages. Prior to version 2.13.0, a Server-Side Request Forgery (SSRF) vulnerability in the fetchTitleAndHeaders function allows authenticated users to make arbitrary HTTP requests to internal services due to insufficient URL validation that only checks for \"http://\" or \"https://\" prefixes. This issue has been patched in version 2.13.0.",
    "evidence": "osv:CVE-2026-44313",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-44313",
      "aliases": [
        "CVE-2026-44313",
        "GHSA-5qpc-x7rv-hvmp"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/linkwarden/linkwarden",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9fb24a732934bc7b4b8df9a0d473d77dab4fe99d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.13.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.13.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.12.2",
            "v2.12.1",
            "v2.12.0",
            "v2.11.8",
            "v2.11.7",
            "v2.11.6",
            "v2.11.5",
            "v2.11.4",
            "v2.11.3",
            "v2.11.2",
            "v2.11.1",
            "v.2.11.0",
            "v2.10.2",
            "v2.10.1",
            "v2.10.0",
            "v2.9.3",
            "v2.9.2",
            "v2.9.1",
            "v2.9.0",
            "v2.8.4",
            "v2.8.3",
            "v2.8.2",
            "v2.8.1",
            "v2.8.0",
            "v2.4.4",
            "v2.4.3",
            "v2.4.2",
            "v2.4.1",
            "v2.4.0",
            "v2.3.0",
            "v2.2.1",
            "v2.2.0",
            "v2.1.0",
            "v2.0.0",
            "v1.2.5",
            "v1.2.4",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.1.0",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44313.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.631705537Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44313.json",
        "https://github.com/linkwarden/linkwarden/security/advisories/GHSA-5qpc-x7rv-hvmp",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-44313"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-918"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44313.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-44313",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499537,
  "published_at": "2026-05-08T23:08:42.424+00:00"
}