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OpenAdvisories
Medium · 4.4 CVE-2026-64672 EUVD-2026-116370GHSA-wv6g-x823-wx9mGO-2026-6768

Terragrunt catalog predictable temp symlink clobber

Published Nov 3, 2026 · Updated Nov 7, 2026 · Assigned by GitHub_M

Description

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 products

VendorProductAffectedFixed
gruntwork-io terragrunt < 1.1.1 —

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/gruntwork-io/terragrunt < 1.1.1 1.1.1 GHSA-wv6g-x823-wx9m

References