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CVE-2026-63639

Estado: Pendiente de análisisAlta (8.8)—

Valkey is a distributed key-value database. Prior to 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1, Valkey's RESTORE command accepts a malformed RDB stream payload that assigns one Pending Entry List NACK to multiple consumers during stream consumer-group deserialization, causing a use-after-free when one consumer is deleted while another still references the shared NACK and potentially allowing remote code execution. This issue is fixed in versions 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1.

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.

AV:N/PR:L (red con privilegios) → T1210. CWE-416 (use-after-free) en deserialización RDB permite RCE (T1059); acceso remoto a base de datos requiere autenticación previa (PR:L).

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

Threat Intelligence ProgramPrivileged Account ManagementExecution PreventionDisable or Remove Feature or ProgramApplication Isolation and SandboxingExploit Protection

Tecnologías afectadas (1)

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

Lfprojects — ValkeyAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-63639",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-63639",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-19T03:56:16.213417Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "valkey-io",
          "product": "valkey",
          "versions": [
            {
              "status": "affected",
              "version": "< 7.2.14"
            },
            {
              "status": "affected",
              "version": ">= 8.0.0, < 8.0.10"
            },
            {
              "status": "affected",
              "version": ">= 8.1.0, < 8.1.9"
            },
            {
              "status": "affected",
              "version": ">= 9.0.0, < 9.0.5"
            },
            {
              "status": "affected",
              "version": ">= 9.1.0, < 9.1.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-08-18T15:16:56.627",
  "references": [
    {
      "url": "https://github.com/valkey-io/valkey/commit/06bc7768fe609f2054e69ccedefe7628f5675da9",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/valkey-io/valkey/commit/509cb3c74e8cbc9c0498ebe8b6c93dcd605e7271",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/valkey-io/valkey/commit/98465eaffe3f95524a5046318bfbc4bdb9798291",
      "source": "security-advisories@github.com"
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    {
      "url": "https://github.com/valkey-io/valkey/commit/e95911d4d65be8789fa3705f44d7ed1e65378445",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/valkey-io/valkey/commit/f8d2027e8d4df790ac04974bf606408c8ea62778",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/valkey-io/valkey/pull/4073",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/valkey-io/valkey/releases/tag/7.2.14",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/valkey-io/valkey/releases/tag/8.0.10",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/valkey-io/valkey/releases/tag/8.1.9",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/valkey-io/valkey/releases/tag/9.0.5",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/valkey-io/valkey/releases/tag/9.1.1",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/valkey-io/valkey/security/advisories/GHSA-mvcj-73cw-22m4",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Valkey is a distributed key-value database. Prior to 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1, Valkey's RESTORE command accepts a malformed RDB stream payload that assigns one Pending Entry List NACK to multiple consumers during stream consumer-group deserialization, causing a use-after-free when one consumer is deleted while another still references the shared NACK and potentially allowing remote code execution. This issue is fixed in versions 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1."
    }
  ],
  "lastModified": "2026-09-18T20:05:53.723",
  "sourceIdentifier": "security-advisories@github.com"
}