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CVE-2026-64672
Published:November 03, 2026
Updated:November 04, 2026
Terragrunt is a flexible orchestration tool that allows Infrastructure as Code written in OpenTofu or Terraform to scale. Prior to 1.1.1, the terragrunt catalog command derives a predictable per-repository catalog clone root under the shared system temporary directory and follows a symlink already placed at that path. A local attacker who can write to the temporary directory and predict the cataloged repository can redirect cleanup and cloning outside the intended root, causing an existing repository-named directory to be deleted and replaced in the victim's security context. The attack requires the victim to run terragrunt catalog on a shared host while the symlink is present, and it is not remotely exploitable. This issue is fixed in version 1.1.1.
Affected Packages
https://github.com/gruntwork-io/terragrunt.git (GITHUB):
Affected version(s) >=v0.0.1 <v1.1.1
Fix Suggestion:
Update to version v1.1.1
github.com/gruntwork-io/terragrunt (GO):
Affected version(s) >=alpha2025022701 <v1.1.1
Fix Suggestion:
Update to version v1.1.1
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CVSS v4
Base Score:
4.4
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.6
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Insecure Temporary File
Improper Link Resolution Before File Access
EPSS
Base Score:
0.18