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CVE-2026-67183

Estado: AplazadaAlta (8.7)—

TinyWeb through 0.0.8 contains a memory leak vulnerability that allows unauthenticated attackers to exhaust available memory by sending ordinary well-formed HTTP requests. Each request causes HttpParser::execute() to allocate Url objects, HttpHeaders objects, and HttpHeader instances via raw new expressions that are never freed due to missing destructors and unreachable delete calls, causing worker resident memory to grow monotonically by approximately 20 to 28 kB per request until the worker process is killed.

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:N/UI:N → acceso remoto sin autenticación (T1190). VA:H describe agotamiento de disponibilidad mediante memory leak (T1499.004: Application Exhaustion Denial of Service), requiriendo solo requests HTTP ordinarias.

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.

Tinyweb — TinywebAI

CWE

Referencias

JSON original (NVD)

Mostrar
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          "options": [
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              "technicalImpact": "partial"
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  "published": "2026-07-28T17:17:07.737",
  "references": [
    {
      "url": "https://github.com/theopaid/Unauthenticated-Memory-Leak-Leads-To-Memory-Exhaustion-TinyWeb-",
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    }
  ],
  "lastModified": "2026-07-30T16:41:25.650",
  "sourceIdentifier": "disclosure@vulncheck.com"
}