Vulnerability from bitnami_vulndb
Published
2026-05-12 08:56
Modified
2026-09-10 15:46
Summary
DoS attack via DOMNode::C14N()
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.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "php",
        "purl": "pkg:bitnami/php"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.4.0"
            },
            {
              "fixed": "8.4.21"
            },
            {
              "introduced": "8.5.0"
            },
            {
              "fixed": "8.5.6"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-7263"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "In PHP versions 8.4.* before 8.4.21 and 8.5.* before 8.5.6, DOMNode::C14N()\u00a0method 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": "BIT-php-2026-7263",
  "modified": "2026-09-10T15:46:03.895Z",
  "published": "2026-05-12T08:56:10.333Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/php/php-src/security/advisories/GHSA-4jhr-8w89-j733"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7263"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:22649"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-7263"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468572"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7263.json"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "DoS attack via DOMNode::C14N()"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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