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CVE-2023-4782

Terraform Allows Arbitrary File Write During Init Operation

HIGH
7.8
CVSS Score
Published: September 8, 2023 at 05:04 PM UTC
Updated: June 17, 2026 at 06:38 AM UTC
1 product affected across 1 vendorTerraform

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Terraform version 1.0.8 through 1.5.6 allows arbitrary file write during the `init` operation if run on maliciously crafted Terraform configuration. This vulnerability is fixed in Terraform 1.5.7.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Terraform· Hashicorp
95%
1.0.8 ≤ v < 1.5.71.0.8
Affected range stops below 1.5.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://discuss.hashicorp.com/t/hcsec-2023-27-terraform-allows-arbitrary-file-write-during-init-operation/58082

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-22

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