Infracost provides cloud cost intelligence for engineers, AI coding agents, and CI/CD. Prior to 0.10.45, internal/hcl/remote_variables_loader.go and related Terraform Cloud, remote-plan, and Terragrunt registry request paths can attach a configured Terraform Cloud or registry token to a destination hostname derived from untrusted Terraform input without confirming that it is the configured trusted host. When a CI run provides a token while scanning attacker-controlled Terraform, including pull_request_target or a same-repository pull request, an attacker can direct the request to an attacker-controlled host and disclose the token.
Standard fork pull_request workflows without secrets are not exposed. This issue is fixed in version 0.10.45.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
Active
User action required
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
infracost:infracost
References 4
https://github.com/infracost/infracost/commit/3d24c757f5e4e60c7259f1b89ad7ceaab…
security-advisories@github.com
https://github.com/infracost/infracost/pull/3590
security-advisories@github.com
https://github.com/infracost/infracost/releases/tag/v0.10.45
security-advisories@github.com
https://github.com/infracost/infracost/security/advisories/GHSA-6x6c-w9w9-hv4h
security-advisories@github.com