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CVE-2026-16498

CRITICAL
10.0
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-16498
State
PUBLISHED
Assigner
HashiCorp
Reserved
2026-07-21 17:19 UTC
Published
2026-07-28 17:57 UTC
Last updated
2026-07-28 18:39 UTC
Primary CWE
CWE-488
CWE-488: Exposure of Data Element to Wrong Session
Vendor / Product
HashiCorp / Tooling
Sources
cve.org  ·  NVD

Severity & Metrics

10.0 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L
SSVC — CISA Coordinator
Exploitation
none
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
HashiCorp Tooling 64 bit,32 bit,x86,ARM,MacOS,Windows,Linux 0.3.0 < 1.1.0
Weakness (CWE)
CWESourceDescription
CWE-488 cna CWE-488: Exposure of Data Element to Wrong Session
CVSS scores (1)
ScoreSeverityVersionSourceVector
10.0 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L
References (1)
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