{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                "range": [
                  {
                    "introduced": "8.4.0"
                  },
                  {
                    "fixed": "8.4.21"
                  }
                ],
                "source": "CPE_RANGE"
              },
              {
                "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                "range": [
                  {
                    "introduced": "8.5.0"
                  },
                  {
                    "fixed": "8.5.6"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          "events": [
            {
              "introduced": "b437f2b32eb364c9496d24abcc734272e5c9c980"
            },
            {
              "fixed": "7a64ae0507799547fbbd39b067bd3dd2c35e8fec"
            },
            {
              "introduced": "685e99655ae97c667950f7f7d176985958718f56"
            },
            {
              "fixed": "fcc29c8d6d6ee6f5ba2d941f0a2a6ea6aa6ee633"
            }
          ],
          "repo": "https://github.com/php/php-src",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-4jhr-8w89-j733"
  ],
  "database_specific": {
    "cna_assigner": "php",
    "cwe_ids": [
      "CWE-404",
      "CWE-835"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7263.json"
  },
  "details": "In PHP versions 8.4.* before 8.4.21 and 8.5.* before 8.5.6, DOMNode::C14N() method may process the XML data incorrectly, causing a circular linked list in the data structure representing the XML document. This may cause subsequent processing of the XML document to enter infinite loop, causing denial of service in the processing application.",
  "id": "CVE-2026-7263",
  "modified": "2026-11-11T02:30:42.952061681Z",
  "published": "2026-05-10T04:43:04.483Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7263.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:22649"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/CVE-2026-7263"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7263.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/php/php-src/security/advisories/GHSA-4jhr-8w89-j733"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7263"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468572"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/AU:Y/RE:M/U:Amber",
      "type": "CVSS_V4"
    }
  ],
  "summary": "DoS attack via DOMNode::C14N()"
}