CVE-2026-16498: CWE-488: Exposure of Data Element to Wrong Session in HashiCorp Tooling
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.
CVE-2026-16498: CWE-488: Exposure of Data Element to Wrong Session in HashiCorp Tooling
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.
CVSS v3.1
Score 10.0critical
Affected software
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Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- HashiCorp
- Date Reserved
- 2026-07-21T17:19:22.057Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a68f3749c2644c7f803d81c
Added to database: 07/28/2026, 18:22:44 UTC
Last updated: 07/29/2026, 02:07:25 UTC
Views: 7
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