CVE-2026-12993

{
  "id": "CVE-2026-12993",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-26T00:16:50.760",
  "lastModified": "2026-10-25T22:10:00.150",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Apicurio Registry. The DocumentBuilderAccessor correctly blocks external DTD and schema access but does not disable DOCTYPE declarations or enable FEATURE_SECURE_PROCESSING. An attacker with artifact-write permission can upload XML documents with internal entity-expansion payloads (billion-laughs variant) that cause CPU and heap exhaustion, partially mitigated by the JAXP default 64,000 entity-expansion limit."
    },
    {
      "lang": "es",
      "value": "Se encontró una vulnerabilidad en Apicurio Registry. El DocumentBuilderAccessor bloquea correctamente el acceso a DTD y esquemas externos, pero no deshabilita las declaraciones DOCTYPE ni habilita FEATURE_SECURE_PROCESSING. Un atacante con permiso de escritura de artefactos puede cargar documentos XML con cargas útiles de expansión de entidades internas (variante billion-laughs) que causan agotamiento de CPU y de la memoria heap, parcialmente mitigado por el límite predeterminado de JAXP de 64.000 expansiones de entidades."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Red Hat",
          "product": "Red Hat build of Apicurio Registry 3.3.1",
          "defaultStatus": "unaffected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "apicurio/apicurio-registry-rhel8",
          "cpes": [
            "cpe:/a:redhat:apicurio_registry:3.3"
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat build of Apicurio Registry 3.3.1",
          "defaultStatus": "unaffected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "apicurio/apicurio-registry-rhel9",
          "cpes": [
            "cpe:/a:redhat:apicurio_registry:3.3"
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-29T18:12:03.315836Z",
          "id": "CVE-2026-12993",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-776"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:redhat:build_of_apicurio_registry:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "3.0",
              "versionEndIncluding": "3.2",
              "matchCriteriaId": "B80ACBA3-FFCF-44E6-A77E-0BD398F0C4D7"
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  ],
  "references": [
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:59360",
      "source": "[email protected]"
    },
    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-12993",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2491692",
      "source": "[email protected]",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ]
    }
  ]
}