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CVE-2025-52477

Estado: AplazadaAlta (8.6)—

Octo-STS is a GitHub App that acts like a Security Token Service (STS) for the GitHub API. Octo-STS versions before v0.5.3 are vulnerable to unauthenticated SSRF by abusing fields in OpenID Connect tokens. Malicious tokens were shown to trigger internal network requests which could reflect error logs with sensitive information. Upgrade to v0.5.3 to resolve this issue. This version includes patch sets to sanitize input and redact logging.

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.

CVSS AV:N/PR:N sin UI indica acceso remoto sin privilegios (T1190). SSRF en campos de token OpenID permite solicitudes de red internas (T1090); error logs reflejan información sensible (T1005).

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 ScanningSSL/TLS InspectionPrivileged Account ManagementNetwork SegmentationNetwork Intrusion Prevention

Tecnologías afectadas (1)

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

Octo-sts — Octo-stsAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-52477",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-52477",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-06-27T13:16:36.251923Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.6,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "octo-sts",
          "product": "app",
          "versions": [
            {
              "status": "affected",
              "version": "< 0.5.3"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-06-26T17:15:30.897",
  "references": [
    {
      "url": "https://github.com/octo-sts/app/commit/0f177fde54f9318e33f0bba6abaea9463a7c3afd",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/octo-sts/app/commit/b3976e39bd8c8c217c0670747d34a4499043da92",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/octo-sts/app/security/advisories/GHSA-h3qp-hwvr-9xcq",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/octo-sts/app/security/advisories/GHSA-h3qp-hwvr-9xcq",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/octo-sts/app/security/advisories/GHSA-h3qp-hwvr-9xcq",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/octo-sts/app/security/advisories/GHSA-h3qp-hwvr-9xcq",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Octo-STS is a GitHub App that acts like a Security Token Service (STS) for the GitHub API. Octo-STS versions before v0.5.3 are vulnerable to unauthenticated SSRF by abusing fields in OpenID Connect tokens. Malicious tokens were shown to trigger internal network requests which could reflect error logs with sensitive information. Upgrade to v0.5.3 to resolve this issue. This version includes patch sets to sanitize input and redact logging."
    },
    {
      "lang": "es",
      "value": "Octo-STS es una aplicación de GitHub que funciona como un Servicio de Token de Seguridad (STS) para la API de GitHub. Las versiones de Octo-STS anteriores a la v0.5.3 son vulnerables a SSRF no autenticado al abusar de los campos de los tokens de OpenID Connect. Se ha demostrado que los tokens maliciosos activan solicitudes de red internas que podrían reflejar registros de errores con información confidencial. Actualice a la v0.5.3 para resolver este problema. Esta versión incluye conjuntos de parches para sanear la entrada y redactar los registros."
    }
  ],
  "lastModified": "2026-06-17T09:36:34.070",
  "sourceIdentifier": "security-advisories@github.com"
}