CVE-2026-16326

consul-mcp-server vulnerable to cross-tenant credential reuse in streamable-HTTP stateless mode

Published Jul 29, 2026 CVSS 3.1 · 10 Critical EPSS < 1% KEV · Not listed
Description
In consul-mcp-server, versions 0.1.0 up to 0.1.3 did not properly isolate session state in stateless mode, which may allow one client's Consul authentication token to be used for subsequent requests from other clients. This vulnerability (CVE-2026-16326) is fixed in consul-mcp-server 0.1.4.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Hashicorp
Hashicorp tooling
Vendors & Products Hashicorp
Hashicorp tooling
Type Values Removed Values Added
Description In consul-mcp-server, versions 0.1.0 up to 0.1.3 did not properly isolate session state in stateless mode, which may allow one client's Consul authentication token to be used for subsequent requests from other clients. This vulnerability (CVE-2026-16326) is fixed in consul-mcp-server 0.1.4.
Title consul-mcp-server vulnerable to cross-tenant credential reuse in streamable-HTTP stateless mode
Weaknesses CWE-488
References
Metrics cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
HashiCorp
Published
Updated
Jul 29, 2026, 7:10 PM
Reserved
Jul 20, 2026, 5:50 PM
Status
Deferred
Published
Jul 29, 2026, 7:16 PM
Modified
Oct 24, 2026, 1:10 PM