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CVE-2026-34460

Estado: AplazadaMedia (5.4)—

NamelessMC is website software for Minecraft servers. In versions 2.2.4 and prior, the OAuth callback handling does not validate the state parameter server-side before exchanging the authorization code. This allows an attacker to capture a valid OAuth callback URL for their own account and cause a victim's browser to navigate to it, resulting in the victim's session being authenticated as the attacker-linked account (OAuth login CSRF / session swapping). This is patched in version 2.2.5.

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).

Tecnologías afectadas (1)

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

Namelessmc — NamelessmcAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-34460",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-34460",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-02T17:35:06.384367Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "NamelessMC",
          "product": "Nameless",
          "versions": [
            {
              "status": "affected",
              "version": "< 2.2.5"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-06-02T16:16:36.933",
  "references": [
    {
      "url": "https://github.com/NamelessMC/Nameless/security/advisories/GHSA-pmpw-2xvh-5xj6",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/NamelessMC/Nameless/security/advisories/GHSA-pmpw-2xvh-5xj6",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-302"
        },
        {
          "lang": "en",
          "value": "CWE-346"
        },
        {
          "lang": "en",
          "value": "CWE-352"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "NamelessMC is website software for Minecraft servers. In versions 2.2.4 and prior, the OAuth callback handling does not validate the state parameter server-side before exchanging the authorization code. This allows an attacker to capture a valid OAuth callback URL for their own account and cause a victim's browser to navigate to it, resulting in the victim's session being authenticated as the attacker-linked account (OAuth login CSRF / session swapping). This is patched in version 2.2.5."
    },
    {
      "lang": "es",
      "value": "NamelessMC es un software de sitio web para servidores de Minecraft. En las versiones 2.2.4 y anteriores, el manejo de la devolución de llamada de OAuth no valida el parámetro state en el lado del servidor antes de intercambiar el código de autorización. Esto permite a un atacante capturar una URL de devolución de llamada de OAuth válida para su propia cuenta y hacer que el navegador de una víctima navegue a ella, lo que resulta en que la sesión de la víctima se autentique como la cuenta vinculada al atacante (CSRF de inicio de sesión de OAuth / intercambio de sesión). Esto está parcheado en la versión 2.2.5."
    }
  ],
  "lastModified": "2026-07-22T19:10:00.120",
  "sourceIdentifier": "security-advisories@github.com"
}