VULNERABILITY INTELLIGENCE

CVE-2026-16496

CVSS score8.9 HIGH
EPSS probability0.36%
CISA KEVNot currently listed
Published2026-07-28
Last modified2026-10-23
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L

Description

The terraform-mcp-server before version 1.1.0 is vulnerable to an authorization bypass in the streamable-HTTP stateful transport mode that may allow a user who obtains another user's MCP session ID to have their tool calls executed using that user's Terraform credentials. This vulnerability, CVE-2026-16496, is fixed in terraform-mcp-server 1.1.0.

Weakness classification

  • CWE-384: Session Fixation

Primary references