CVE-2026-16498
Published:July 28, 2026
Updated:August 06, 2026
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.
Affected Packages
https://github.com/hashicorp/terraform-mcp-server.git (GITHUB):
Affected version(s) >=v0.1.0 <v1.1.0Fix Suggestion:
Update to version v1.1.0github.com/hashicorp/terraform-mcp-server (GO):
Affected version(s) >=v0.1.0 <v1.0.1-0.20260714174952-0a0dee37613fFix Suggestion:
Update to version v1.0.1-0.20260714174952-0a0dee37613fRelated Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
10
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
LOW
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
LOW
CVSS v3
Base Score:
10
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
LOW
Weakness Type (CWE)
Exposure of Data Element to Wrong Session
EPSS
Base Score:
0.33