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CVE-2026-35457

Estado: AnalizadaAlta (8.2)—

libp2p-rust is the official rust language Implementation of the libp2p networking stack. Prior to 0.17.1, the rendezvous server stores pagination cookies without bounds. An unauthenticated peer can repeatedly issue DISCOVER requests and force unbounded memory growth. This vulnerability is fixed in 0.17.1.

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.

Peer remoto no autenticado explota servidor libp2p accesible en red (AV:N, PR:N) mediante requests DISCOVER repetidas causando DoS por agotamiento de memoria (CWE-770, A:H).

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

Tecnologías afectadas (1)

CWE

Referencias

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{
  "id": "CVE-2026-35457",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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          "id": "CVE-2026-35457",
          "role": "CISA Coordinator",
          "options": [
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            },
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              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-07T17:53:22.542830Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4.2,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "libp2p",
          "product": "rust-libp2p",
          "versions": [
            {
              "status": "affected",
              "version": "< 0.17.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-04-07T15:17:43.587",
  "references": [
    {
      "url": "https://github.com/libp2p/rust-libp2p/security/advisories/GHSA-v5hw-cv9c-rpg7",
      "tags": [
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        "Vendor Advisory"
      ],
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        }
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      "value": "libp2p-rust is the official rust language Implementation of the libp2p networking stack. Prior to 0.17.1, the rendezvous server stores pagination cookies without bounds. An unauthenticated peer can repeatedly issue DISCOVER requests and force unbounded memory growth. This vulnerability is fixed in 0.17.1."
    }
  ],
  "lastModified": "2026-06-17T10:40:37.773",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:protocol:libp2p:*:*:*:*:*:rust:*:*",
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}