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CVE-2026-43002

Estado: AnalizadaMedia (5.3)—

An issue was discovered in OpenStack Horizon 25.6 and 25.7 before 25.7.3. There is a write operation to the session storage backend before authentication and thus storage can be exhausted by unauthenticated requests. This is a regression of the CVE-2014-8124 fix.

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).

Tecnologías afectadas (1)

Openstack — Horizon

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-43002",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-43002",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-05T17:26:54.895377Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@mitre.org",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
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      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "OpenStack",
          "product": "Horizon",
          "versions": [
            {
              "status": "affected",
              "version": "25.6.0",
              "lessThan": "25.7.3",
              "versionType": "semver"
            }
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  ],
  "published": "2026-05-05T17:17:04.920",
  "references": [
    {
      "url": "https://bugs.launchpad.net/horizon/+bug/2150331",
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      "url": "https://security.openstack.org/ossa/OSSA-2026-009.html",
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      "url": "https://www.openwall.com/lists/oss-security/2026/05/05/7",
      "tags": [
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        "Third Party Advisory"
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      "source": "cve@mitre.org"
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    {
      "url": "https://bugs.launchpad.net/horizon/+bug/2150331",
      "tags": [
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        "Vendor Advisory"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve@mitre.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-696"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in OpenStack Horizon 25.6 and 25.7 before 25.7.3. There is a write operation to the session storage backend before authentication and thus storage can be exhausted by unauthenticated requests. This is a regression of the CVE-2014-8124 fix."
    },
    {
      "lang": "es",
      "value": "Se descubrió un problema en OpenStack Horizon 25.6 y 25.7 antes de la versión 25.7.3. Hay una operación de escritura en el backend de almacenamiento de la sesión antes de la autenticación y, por lo tanto, el almacenamiento puede ser agotado por solicitudes no autenticadas. Esto es una regresión de la corrección de CVE-2014-8124."
    }
  ],
  "lastModified": "2026-09-10T21:22:48.593",
  "configurations": [
    {
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              "versionEndExcluding": "25.7.3",
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          ],
          "operator": "OR"
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  ],
  "sourceIdentifier": "cve@mitre.org"
}