CVE-2026-64672
Terragrunt catalog predictable temp symlink clobber
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.
Fixes and workarounds
Fix
github.com/gruntwork-io/terragrunt (Go): OSV reports a fixed version 1.1.1. Check the advisory for supported release branches.
Source: OSV GHSA-wv6g-x823-wx9mAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| terragrunt gruntwork-io |
< 1.1.1 (affected) | CNA: GitHub_M |
github.com/gruntwork-io/terragruntgithub.com/gruntwork-io/terragrunt
Go |
≥ 0; < 1.1.1 (affected, semver); OSV events: introduced 0; fixed 1.1.1Source events (semver)Other versions: unaffected |
OSV GHSA-wv6g-x823-wx9m |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 4.4 medium |
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N | CNA: GitHub_M |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/gruntwork-io/terragrunt/security/advisories/GHSA-wv6g-x823-wx9mCNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/gruntwork-io/terragrunt/pull/6438CNA: GitHub_M · x_refsource_MISC
- https://github.com/gruntwork-io/terragrunt/commit/668891c5a2ad2996f134bb8b00098754674ea94aCNA: GitHub_M · x_refsource_MISC
- https://github.com/gruntwork-io/terragrunt/releases/tag/v1.1.1CNA: GitHub_M · x_refsource_MISC
- https://github.com/advisories/GHSA-wv6g-x823-wx9mOSV / GitHub Security Advisories · advisory
- https://osv.dev/vulnerability/GHSA-wv6g-x823-wx9mOSV / GitHub Security Advisories · osv
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