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CVE-2026-103880

Estado: AplazadaAlta (7.5)—

Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API.

Storing a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to  run for hours checking the credentials. A bounded cost should be enforced to avoid a server DOS.

This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9.

Users are recommended to upgrade to version 2.1.9, which fixes the issue.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

CWE-405: consumo asimétrico de recursos en validación bcrypt con factor 30 causa DoS de CPU en servidor LDAP. Vector AV:N/AC:L/PR:N/UI:N indica explotación remota sin privilegios (T1190). Impacto: denegación de servicio por agotamiento de recursos (T1499.004).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Apache — Directory Ldap APIAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-103880",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-103880",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-05T18:46:46.577864Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@apache.org",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Directory LDAP API",
          "versions": [
            {
              "status": "affected",
              "version": "2.1.0",
              "lessThan": "2.1.9",
              "versionType": "semver"
            }
          ],
          "packageURL": "pkg:maven/org.apache.directory.api/api-ldap-model",
          "packageName": "org.apache.directory.api:api-ldap-model",
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected"
        }
      ]
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  ],
  "published": "2026-10-02T10:17:06.700",
  "references": [
    {
      "url": "https://lists.apache.org/thread.html/39q63m54v9go6xj7pqj7q18c3szn9go4",
      "source": "security@apache.org"
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    {
      "url": "http://www.openwall.com/lists/oss-security/2026/10/02/7",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Deferred",
  "weaknesses": [
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      "type": "Secondary",
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      "description": [
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  "descriptions": [
    {
      "lang": "en",
      "value": "Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API.\n\n\n\nStoring a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to  run for hours checking the credentials. A bounded cost should be enforced to avoid a server DOS.\n\n\n\nThis issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9.\n\n\n\nUsers are recommended to upgrade to version 2.1.9, which fixes the issue."
    }
  ],
  "lastModified": "2026-10-05T19:17:14.160",
  "sourceIdentifier": "security@apache.org"
}