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CVE-2026-63760

Estado: AnalizadaAlta (8.7)—

SurrealDB before 3.1.0 fails to enforce the configured recursion depth limit in the value and JSON parser when processing nested braces, brackets, or parentheses. Unauthenticated attackers can send deeply nested JSON payloads to the WebSocket /rpc endpoint to exhaust server memory and crash the process.

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 aplicación web expuesta (AV:N, PR:N, UI:N); ataque de denegación de servicio por agotamiento de memoria mediante payloads JSON anidados en endpoint WebSocket /rpc.

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)

Surrealdb — Surrealdb

CWE

Referencias

JSON original (NVD)

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  "published": "2026-07-20T12:19:46.187",
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    {
      "url": "https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-json-parser",
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  "lastModified": "2026-07-22T15:08:06.867",
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