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RELEASE NOTESHASHICORPVERIFIED

PUBLISHER UPDATE · TERRAFORM-1.15.9

TERRAFORM-1.15.9 release notes and known issues

v1.15.9

Scope: Terraform. This update record adds version, fix and known-issue context. Its publication date is not a lifecycle boundary.

Summary

1.15.9 (August 19, 2026) BUG FIXES: validate: Child module validation has been fixed and will now raise errors or warning diagnostics for invalid blocks. ( list , import , backend , and cloud ) ( #38994 ) NOTES: Update go-slug to v0.18.3 to mitigate CVE-2026-14978 , which is a Unicode normalization issue that could lead to files not being correctly excluded via .terraformignore from upload to a Terraform Enterprise or HCP Terraform during a run ( #39036 )

Improvements and security content

  • 1.15.9 (August 19, 2026) BUG FIXES: validate: Child module validation has been fixed and will now raise errors or warning diagnostics for invalid blocks. ( list , import , backend , and cloud ) ( #38994 ) NOTES: Update go-slug to v0.18.3 to mitigate CVE-2026-14978 , which is a Unicode normalization issue that could lead to files not being correctly excluded via .terraformignore from upload to a Terraform Enterprise or HCP Terraform during a run ( #39036 )

Known issues

Publisher statement

Not stated. The verified publisher record does not contain a known-issues statement.

Affected products and versions

Products

  • Terraform

Affected versions

  • 1.15.9
  • 0.18.3

Fixed versions or updates

  • No fixed version is stated in this record.

Recommended action

Review the official publisher document before deployment.

Related vulnerabilities

BlackTree CVE Intelligence

Official publisher evidence