CVE-2026-45099Terragrunt: Arbitrary File Deletion via Malicious Module Manifest
Updated under an hour ago ()
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It affects gruntwork-io terragrunt. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.9 MEDIUM (v4.0, CNA)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
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Awaiting Analysis
- Record last updated
- Aug 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
gruntwork-io terragrunt gruntwork_io:terragrunt (from the name) | before 1.0.4 | CNA record |
References
- https://github.com/gruntwork-io/terragrunt/security/advisories/GHSA-8394-6f8r-whxgx-refsource-confirm
- https://github.com/gruntwork-io/terragrunt/pull/6032x-refsource-misc
- https://github.com/gruntwork-io/terragrunt/commit/3d6f10d6bccc851c6506a307a0b8675e0346e65ex-refsource-misc
- https://github.com/gruntwork-io/terragrunt/releases/tag/v1.0.4x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.