FKIE_CVE-2026-45099

Vulnerability from fkie_nvd - Published: 2026-08-21 21:16 - Updated: 2026-10-12 16:10
Severity
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Summary
Terragrunt is a flexible orchestration tool that allows Infrastructure as Code written in OpenTofu or Terraform to scale. Prior to 1.0.4, Terragrunt trusts paths decoded from a downloaded module's .terragrunt-module-manifest during fileManifest.Clean() in internal/util/file.go. A malicious or compromised external module can place absolute or traversal paths in the manifest, causing cleanup to delete files outside the module cache that are accessible to the Terragrunt process before OpenTofu or Terraform executes. This deletion-only primitive can remove local source code or configuration and disrupt CI/CD pipelines. This issue is fixed in version 1.0.4.
References
security-advisories@github.comhttps://github.com/gruntwork-io/terragrunt/commit/3d6f10d6bccc851c6506a307a0b8675e0346e65e
security-advisories@github.comhttps://github.com/gruntwork-io/terragrunt/pull/6032
security-advisories@github.comhttps://github.com/gruntwork-io/terragrunt/releases/tag/v1.0.4
security-advisories@github.comhttps://github.com/gruntwork-io/terragrunt/security/advisories/GHSA-8394-6f8r-whxg
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "terragrunt",
          "vendor": "gruntwork-io",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.0.4"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Terragrunt is a flexible orchestration tool that allows Infrastructure as Code written in OpenTofu or Terraform to scale. Prior to 1.0.4, Terragrunt trusts paths decoded from a downloaded module\u0027s .terragrunt-module-manifest during fileManifest.Clean() in internal/util/file.go. A malicious or compromised external module can place absolute or traversal paths in the manifest, causing cleanup to delete files outside the module cache that are accessible to the Terragrunt process before OpenTofu or Terraform executes. This deletion-only primitive can remove local source code or configuration and disrupt CI/CD pipelines. This issue is fixed in version 1.0.4."
    },
    {
      "lang": "es",
      "value": "Terragrunt es una herramienta de orquestaci\u00f3n flexible que permite escalar la Infraestructura como C\u00f3digo escrita en OpenTofu o Terraform. Antes de la versi\u00f3n 1.0.4, Terragrunt conf\u00eda en las rutas decodificadas del archivo .terragrunt-module-manifest de un m\u00f3dulo descargado durante fileManifest.Clean() en internal/util/file.go. Un m\u00f3dulo externo malicioso o comprometido puede colocar rutas absolutas o de recorrido en el manifiesto, provocando que la limpieza elimine archivos fuera de la cach\u00e9 del m\u00f3dulo que son accesibles para el proceso de Terragrunt antes de que OpenTofu o Terraform se ejecuten. Esta primitiva de solo eliminaci\u00f3n puede eliminar c\u00f3digo fuente o configuraci\u00f3n local y alterar las pipelines de CI/CD. Este problema est\u00e1 solucionado en la versi\u00f3n 1.0.4."
    }
  ],
  "id": "CVE-2026-45099",
  "lastModified": "2026-10-12T16:10:00.220",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.9,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-45099",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-25T14:23:03.914445Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-21T21:16:59.403",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gruntwork-io/terragrunt/commit/3d6f10d6bccc851c6506a307a0b8675e0346e65e"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gruntwork-io/terragrunt/pull/6032"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gruntwork-io/terragrunt/releases/tag/v1.0.4"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gruntwork-io/terragrunt/security/advisories/GHSA-8394-6f8r-whxg"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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