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CVE-2026-18022

Estado: AnalizadaAlta (8.8)—

Integer wraparound in IVFFlat index build in pgvector before 0.8.6 allows a database user to write data out-of-bounds, which could lead to arbitrary code execution. Only 32-bit systems are affected.

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.

Vulnerabilidad de integer wraparound en pgvector (CWE-190, CWE-787) con acceso en red requiriendo privilegios de usuario BD (PR:L). Permite escritura fuera de límites con potencial ejecución de código arbitrario en sistemas 32-bit.

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

Privileged Account ManagementDisable or Remove Feature or ProgramVulnerability ScanningThreat Intelligence ProgramRestrict Web-Based ContentNetwork Segmentation

Tecnologías afectadas (1)

Pgvector Project — Pgvector

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-18022",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
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              "automatable": "no"
            },
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              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-07-30T00:00:00+00:00"
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          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
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          "confidentialityImpact": "HIGH"
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        {
          "vendor": "n/a",
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          "versions": [
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  "published": "2026-07-29T20:17:02.593",
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      "tags": [
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  ],
  "lastModified": "2026-08-20T13:15:02.673",
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