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CVE-2026-34242

Estado: AnalizadaAlta (7.7)—

Weblate is a web based localization tool. In versions prior to 5.17, the ZIP download feature didn't verify downloaded files, potentially following symlinks outside the repository. This issue has been fixed in version 5.17.

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:L: explotación remota con credenciales. ZIP sin validación seguía symlinks fuera del repositorio, exponiendo datos arbitrarios del servidor (T1005). Potencial acceso a archivos de configuración sensibles (T1552).

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-2026-34242",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-34242",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-15T19:37:49.486231Z"
        }
      }
    ],
    "cvssMetricV31": [
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4,
        "exploitabilityScore": 3.1
      }
    ]
  },
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      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "WeblateOrg",
          "product": "weblate",
          "versions": [
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              "version": "< 5.17"
            }
          ]
        }
      ]
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  ],
  "published": "2026-04-15T19:16:35.753",
  "references": [
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      "url": "https://github.com/WeblateOrg/weblate/commit/5db3a2a2e047ecaab627a8731cd744a30b2f51d3",
      "tags": [
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    },
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      "tags": [
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      ],
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    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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        },
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          "value": "CWE-59"
        },
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      "lang": "en",
      "value": "Weblate is a web based localization tool. In versions prior to 5.17, the ZIP download feature didn't verify downloaded files, potentially  following symlinks outside the repository. This issue has been fixed in version 5.17."
    }
  ],
  "lastModified": "2026-06-17T10:38:42.990",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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}