CVE-2026-45099
Published:August 21, 2026
Updated:September 24, 2026
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.
Affected Packages
https://github.com/gruntwork-io/terragrunt.git (GITHUB):
Affected version(s) >=v0.19.13 <v1.0.4Fix Suggestion:
Update to version v1.0.4github.com/gruntwork-io/terragrunt (GO):
Affected version(s) >=alpha2025022701 <v1.0.4Fix Suggestion:
Update to version v1.0.4github.com/gruntwork-io/terragrunt (GO):
Affected version(s) >=v0.0.1 <v1.0.4Fix Suggestion:
Update to version v1.0.4Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
EPSS
Base Score:
0.42