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CVE-2026-29049

Estado: ModificadaMedia (4.3)—

melange allows users to build apk packages using declarative pipelines. In version 0.40.5 and prior, melange update-cache downloads URIs from build configs via io.Copy without any size limit or HTTP client timeout (pkg/renovate/cache/cache.go). An attacker-controlled URI in a melange config can cause unbounded disk writes, exhausting disk on the build runne. Version 0.43.4 contains a patch.

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)

Chainguard — Melange

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-29049",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-29049",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-09T20:00:02.881191Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
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      "affectedData": [
        {
          "vendor": "chainguard-dev",
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          "versions": [
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              "status": "affected",
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            }
          ]
        }
      ]
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  ],
  "published": "2026-03-06T07:16:02.093",
  "references": [
    {
      "url": "https://github.com/chainguard-dev/melange/commit/652ca5af08588f78e2d405e64b058fac8398d23f",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/chainguard-dev/melange/pull/2379",
      "source": "security-advisories@github.com"
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      "url": "https://github.com/chainguard-dev/melange/releases/tag/v0.43.4",
      "source": "security-advisories@github.com"
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      "url": "https://github.com/chainguard-dev/melange/security/advisories/GHSA-7rp8-r62p-q6wc",
      "tags": [
        "Vendor Advisory"
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      "source": "security-advisories@github.com"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        },
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "melange allows users to build apk packages using declarative pipelines. In version 0.40.5 and prior, melange update-cache downloads URIs from build configs via io.Copy without any size limit or HTTP client timeout (pkg/renovate/cache/cache.go). An attacker-controlled URI in a melange config can cause unbounded disk writes, exhausting disk on the build runne. Version 0.43.4 contains a patch."
    },
    {
      "lang": "es",
      "value": "melange permite a los usuarios construir paquetes apk utilizando pipelines declarativos. En la versión 0.40.5 y anteriores, melange update-cache descarga URIs de configuraciones de compilación a través de io.Copy sin ningún límite de tamaño o tiempo de espera del cliente HTTP (pkg/renovate/cache/cache.go). Una URI controlada por un atacante en una configuración de melange puede causar escrituras de disco ilimitadas, agotando el disco en el ejecutor de compilación. No hay ningún parche conocido disponible públicamente."
    }
  ],
  "lastModified": "2026-07-07T14:16:29.857",
  "configurations": [
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              "versionEndIncluding": "0.40.5"
            }
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          "operator": "OR"
        }
      ]
    }
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  "sourceIdentifier": "security-advisories@github.com"
}