{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "09a2dd453007f9c7205274623acdd73747c22d64"
            },
            {
              "fixed": "4c6922f763ad958c48ff66f82823ae21f2e92ee6"
            },
            {
              "fixed": "647e072ea0a2f12687fa05c172f4c4713fdb0c4f"
            }
          ],
          "repo": "https://github.com/gnome/libxml2",
          "type": "GIT"
        },
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.14.3"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e8d2f4a829c50e6ad4ccd1625cd094e3a24acf36"
            }
          ],
          "repo": "https://github.com/sparklemotion/nokogiri",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-pxvg-2qj5-37jq"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54354.json"
  },
  "details": "Nokogiri before 1.14.3 (CRuby implementation only, when using the packaged libxml2) bundles libxml2 v2.10.3, which is vulnerable to NULL pointer dereferences in XML Schema processing (xmlSchemaFixupComplexType, CVE-2023-28484, and xmlSchemaCheckCOSSTDerivedOK). An attacker who supplies a crafted/malformed XML schema can cause libxml2 to dereference a NULL pointer and potentially segfault, resulting in a denial of service. Nokogiri 1.14.3 upgrades the packaged libxml2 to v2.10.4 to resolve these issues.",
  "id": "CVE-2023-54354",
  "modified": "2026-08-30T03:30:15.857653375Z",
  "published": "2026-08-25T15:15:55.858Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54354.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-pxvg-2qj5-37jq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54354"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/nokogiri-before-null-pointer-dereference-via-libxml2"
    },
    {
      "type": "FIX",
      "url": "https://github.com/GNOME/libxml2/commit/09a2dd453007f9c7205274623acdd73747c22d64"
    },
    {
      "type": "FIX",
      "url": "https://github.com/GNOME/libxml2/commit/4c6922f763ad958c48ff66f82823ae21f2e92ee6"
    },
    {
      "type": "FIX",
      "url": "https://github.com/GNOME/libxml2/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Nokogiri before 1.14.3 Null Pointer Dereference via libxml2"
}