{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:apache:xmlschema:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.3.3"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "abc808eeb7190776f19132c7947f9c8c8570627c"
            }
          ],
          "repo": "https://github.com/apache/ws-xmlschema",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "apache",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102497.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "2.3.3"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "The Apache XmlSchema walker (xmlschema-walker) doesn't detect cycles in type derivation, substitution groups, model groups or attribute groups. A malicious schema with such a cycle can make the walker recurse until the stack overflows, causing a denial of service.\n\nUsers are recommended to upgrade to version 2.3.3, which fixes this issue.",
  "id": "CVE-2026-102497",
  "modified": "2026-10-08T02:31:10.827169571Z",
  "published": "2026-09-29T11:34:17.292Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/09/29/17"
    },
    {
      "type": "WEB",
      "url": "https://repo.maven.apache.org/maven2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102497.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://lists.apache.org/thread/1cj02tobjyhjqq723bvg78yxkqt1lk7k"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-102497"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache XMLSchema: Denial of service through cyclic schema definitions in the schema walker"
}