Terraform vulnerabilities: known CVEs & security history
HashiCorp · Infrastructure as code · 5 tracked CVEs · 0 actively exploited · updated June 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all Terraform release lines — 5 in total. A CVE here doesn't mean your version is affected — check Terraform's current status and the safe version to run.
Known Terraform CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2018-9057 | critical | 9.8 | 2% | 2018 |
| CVE-2021-36230 | high | 8.8 | 1% | 2021 |
| CVE-2019-19316 | high | 7.5 | 1% | 2019 |
| CVE-2023-4782 | medium | 6.3 | 0% | 2023 |
| CVE-2025-13432 | medium | 4.3 | 0% | 2025 |
Is my Terraform version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your Terraform version → · Monitor Terraform for new CVEs →
Terraform vulnerabilities — frequently asked
How many known vulnerabilities does Terraform have?
IsItPatched tracks 5 CVEs for Terraform. 1 is critical-severity and 2 high-severity. These span every release line — what matters is whether the version you run is affected.
Does Terraform have any actively-exploited vulnerabilities?
None of Terraform's tracked CVEs are currently in CISA's KEV catalog — but new ones can be added at any time, so keep your version current.
What is the most severe Terraform vulnerability?
Among tracked issues, CVE-2018-9057 (CRITICAL, CVSS 9.8) ranks highest — a CWE-332 weakness.
Is Terraform safe to use?
It depends on the version. The latest supported Terraform release clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: Terraform security status · Terraform end-of-life · actively-exploited CVEs. Always verify against HashiCorp's advisories — see our disclaimer.