Nixpkgs security tracker

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Permalink CVE-2026-16496

8.9 HIGH

CVSS version (CVSS): 3.1
Attack Vector (AV): Network (N)
Attack Complexity (AC): High (H)
Privileges Required (PR): None (N)
User Interaction (UI): None (N)
Scope (S): Changed (C)
Confidentiality (C): High (H)
Integrity (I): High (H)
Availability (A): Low (L)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): High (H)
Modified Privileges Required (MPR): None (N)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): High (H)
Modified Scope (MS): Changed (C)
Modified Integrity (MI): High (H)
Modified Availability (MA): Low (L)

updated 1 month, 4 weeks ago by @LeSuisse Activity log

Created suggestion 1 month, 4 weeks ago
@LeSuisse dismissed (not in Nixpkgs) 1 month, 4 weeks ago

terraform-mcp-server vulnerable to cross-user credential inheritance if an MCP session ID is obtained by another user

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.