CVE-2026-16328: CWE-918: Server-Side Request Forgery (SSRF) in HashiCorp Tooling
In consul-mcp-server, versions 0.1.0 up to 0.1.3 did not restrict how the Consul backend address was supplied, allowing a connected client to override the server's configured Consul address via a request header. This may allow a malicious client to redirect the server's Consul API traffic to an attacker-controlled endpoint, potentially exfiltrating the Consul token configured on the server. This vulnerability, CVE-2026-16328, is fixed in consul-mcp-server 0.1.4.
AI Analysis
Technical Summary
The vulnerability in consul-mcp-server (versions 0.1.0 up to 0.1.3) arises from insufficient restriction on how the Consul backend address is supplied. A malicious client can manipulate a request header to override the server's configured Consul address, causing the server to send Consul API traffic to an attacker-controlled endpoint. This can lead to exfiltration of the Consul token configured on the server. The vulnerability is identified as CWE-918 (Server-Side Request Forgery) and has a CVSS 3.1 base score of 8.6 (high severity). It is fixed in version 0.1.4 of consul-mcp-server.
Potential Impact
An attacker who can connect to the consul-mcp-server can redirect Consul API requests to an endpoint they control, potentially exfiltrating sensitive authentication tokens (Consul tokens) from the server. This compromises confidentiality of the Consul token but does not directly impact integrity or availability according to the CVSS vector.
Mitigation Recommendations
Upgrade consul-mcp-server to version 0.1.4 or later, where this vulnerability is fixed. No other official remediation or temporary fixes are documented. Patch status is confirmed fixed in 0.1.4.
CVE-2026-16328: CWE-918: Server-Side Request Forgery (SSRF) in HashiCorp Tooling
Description
In consul-mcp-server, versions 0.1.0 up to 0.1.3 did not restrict how the Consul backend address was supplied, allowing a connected client to override the server's configured Consul address via a request header. This may allow a malicious client to redirect the server's Consul API traffic to an attacker-controlled endpoint, potentially exfiltrating the Consul token configured on the server. This vulnerability, CVE-2026-16328, is fixed in consul-mcp-server 0.1.4.
CVSS v3.1
Score 8.6high
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in consul-mcp-server (versions 0.1.0 up to 0.1.3) arises from insufficient restriction on how the Consul backend address is supplied. A malicious client can manipulate a request header to override the server's configured Consul address, causing the server to send Consul API traffic to an attacker-controlled endpoint. This can lead to exfiltration of the Consul token configured on the server. The vulnerability is identified as CWE-918 (Server-Side Request Forgery) and has a CVSS 3.1 base score of 8.6 (high severity). It is fixed in version 0.1.4 of consul-mcp-server.
Potential Impact
An attacker who can connect to the consul-mcp-server can redirect Consul API requests to an endpoint they control, potentially exfiltrating sensitive authentication tokens (Consul tokens) from the server. This compromises confidentiality of the Consul token but does not directly impact integrity or availability according to the CVSS vector.
Mitigation Recommendations
Upgrade consul-mcp-server to version 0.1.4 or later, where this vulnerability is fixed. No other official remediation or temporary fixes are documented. Patch status is confirmed fixed in 0.1.4.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- HashiCorp
- Date Reserved
- 2026-07-20T17:50:23.169Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a6a4bfc9c2644c7f8e93ebd
Added to database: 07/29/2026, 18:52:44 UTC
Last enriched: 07/29/2026, 19:09:56 UTC
Last updated: 07/30/2026, 00:38:09 UTC
Views: 7
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.