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Vulnerability record · CVE-2026-16498 · published 28 July 2026

CVE-2026-16498: The terraform-mcp-server before version 1.1.0 is vulnerable to a cross-tenant credential reuse issue in the st…

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.

10.0 CVSS 3.1 Critical EPSS 0.46% · top 62.9% CWE-488 · CWE-488 Deferred
10.0CVSS 3.1 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
30 Jul 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L

References

LinkTags
https://discuss.hashicorp.com/t/hcsec-2026-23-multiple-vulnerabilities-impacting-hashicorp-terraform-mcp-server/77606

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Source: NIST National Vulnerability Database (record CVE-2026-16498), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.