CVE-2026-16498
Critical
Description
The terraform-mcp-server before version 1.1.0 is vulnerable to a cross-tenant credential reuse issue in the streamable-HTTP stateless transport mode that may allow one user's Terraform token to be used to execute tool calls on behalf of subsequent users. This vulnerability, CVE-2026-16498, is fixed in terraform-mcp-server 1.1.0.
SeverityCritical
CVSS10.0
Exploit probability—
ProductTooling
PublishedJul 28, 2026
First seenJul 28, 2026
Weakness typeCWE-488CWE-488
How to fix
Update
- HashiCorp Tooling1.1.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| HashiCorp Tooling | 0.3.0 ≤ v < 1.1.0 | 1.1.0 |
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