Tiptap for PHP < 2.1.1 DoS via Malformed href Attribute

{
  "id": "0b153c6945ef44bd3663178adb99e127466d1e651067fdaf9dd2bfe32a78478b",
  "url": "https://osv.dev/vulnerability/CVE-2026-47110",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Tiptap for PHP < 2.1.1 DoS via Malformed href Attribute",
    "summary": "Tiptap for PHP before version 2.1.1 contains an input validation vulnerability that allows authenticated attackers to cause a denial of service by submitting Tiptap JSON with the attrs.href field set to an array instead of a string, causing an unhandled TypeError in the Link::isAllowedUri() function when passed to preg_match(). Attackers can persist malformed JSON records that permanently crash the server-side HTML rendering pipeline for all subsequent viewers of that record until the database entry is manually repaired.",
    "evidence": "osv:CVE-2026-47110",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-47110",
      "aliases": [
        "CVE-2026-47110",
        "GHSA-4595-7fjw-r3jh"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ueberdosis/tiptap-php",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "74bfb7be1c8c6102b240f3879b7f984a6ab87b97"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.1.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "74bfb7be1c8c6102b240f3879b7f984a6ab87b97"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "2.1.1"
                  },
                  {
                    "range": [
                      {
                        "fixed": "74bfb7be1c8c6102b240f3879b7f984a6ab87b97"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.1.1"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.1.0",
            "2.0.0",
            "1.4.0",
            "1.3.0",
            "1.2.0",
            "1.1.0",
            "1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47110.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:36.627590017Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47110.json",
        "https://github.com/ueberdosis/tiptap-php/releases/tag/2.1.1",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-47110",
        "https://www.vulncheck.com/advisories/tiptap-for-php-dos-via-malformed-href-attribute",
        "https://github.com/ueberdosis/tiptap-php/pull/94",
        "https://github.com/ueberdosis/tiptap-php/commit/74bfb7be1c8c6102b240f3879b7f984a6ab87b97",
        "https://github.com/ueberdosis/tiptap-php"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-241"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47110.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-47110",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 503973,
  "published_at": "2026-06-24T21:21:39.655+00:00"
}