CVE-2026-13341: CWE-20 Improper input validation in KongHQ mcp-konnect
A vulnerability exists in the Kong Konnect Model Context Protocol (MCP) server prior to version 1.0.0, which could allow a remote attacker to perform an indirect prompt injection attack and execute unintended API requests.
AI Analysis
Technical Summary
This vulnerability in KongHQ's mcp-konnect product prior to version 1.0.0 is due to improper input validation (CWE-20) in the MCP server. An attacker can exploit this flaw remotely over the network with low attack complexity and no privileges, but user interaction is required. Successful exploitation can cause a change in system state by executing unintended API requests, impacting confidentiality but not integrity or availability. The CVSS 3.1 base score is 7.4 (high). There is no vendor advisory or patch information available at this time.
Potential Impact
The vulnerability allows remote attackers to indirectly inject prompts that cause the MCP server to execute unintended API requests. This can lead to a confidentiality breach as sensitive information may be exposed. There is no impact on integrity or availability according to the CVSS vector. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution with user interactions that could trigger this vulnerability and monitor for updates from KongHQ.
CVE-2026-13341: CWE-20 Improper input validation in KongHQ mcp-konnect
Description
A vulnerability exists in the Kong Konnect Model Context Protocol (MCP) server prior to version 1.0.0, which could allow a remote attacker to perform an indirect prompt injection attack and execute unintended API requests.
CVSS v3.1
Score 7.4high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in KongHQ's mcp-konnect product prior to version 1.0.0 is due to improper input validation (CWE-20) in the MCP server. An attacker can exploit this flaw remotely over the network with low attack complexity and no privileges, but user interaction is required. Successful exploitation can cause a change in system state by executing unintended API requests, impacting confidentiality but not integrity or availability. The CVSS 3.1 base score is 7.4 (high). There is no vendor advisory or patch information available at this time.
Potential Impact
The vulnerability allows remote attackers to indirectly inject prompts that cause the MCP server to execute unintended API requests. This can lead to a confidentiality breach as sensitive information may be exposed. There is no impact on integrity or availability according to the CVSS vector. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution with user interactions that could trigger this vulnerability and monitor for updates from KongHQ.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Kong
- Date Reserved
- 2026-06-25T14:11:55.561Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a47944827e9c7971986ce23
Added to database: 07/03/2026, 10:51:52 UTC
Last enriched: 07/11/2026, 08:56:51 UTC
Last updated: 08/17/2026, 00:41:09 UTC
Views: 108
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