CVE-2026-73844: CWE-209: Generation of Error Message Containing Sensitive Information in ondata ckan-mcp-server
CKAN MCP Server versions prior to 0.4.112 expose sensitive information in error messages. When the server encounters non-CKAN responses or internal exceptions, it returns raw upstream response bodies and internal exception details to the caller. This includes hostnames, internal IP addresses, database errors, and stack traces. The issue is addressed in version 0.4.112.
AI Analysis
Technical Summary
CVE-2026-73844 is a vulnerability in ondata's ckan-mcp-server where error handling prior to version 0.4.112 improperly exposes sensitive information. Instead of returning sanitized error messages, the server reflects raw upstream response content and internal exception details back to the caller. This can reveal internal hostnames, IP addresses, database error messages, and stack trace fragments when the server is redirected or pointed to a non-CKAN host or when internal exceptions occur. The vulnerability is fixed in version 0.4.112.
Potential Impact
The vulnerability allows an attacker to obtain sensitive internal information such as hostnames, internal IP addresses, database error messages, and stack trace fragments through error messages. This information disclosure could aid in further attacks or reconnaissance. The CVSS score is 3.7 (low severity), indicating limited impact primarily related to confidentiality.
Mitigation Recommendations
Upgrade ckan-mcp-server to version 0.4.112 or later, where error messages are properly sanitized to avoid leaking sensitive information. No other mitigation is indicated or required.
CVE-2026-73844: CWE-209: Generation of Error Message Containing Sensitive Information in ondata ckan-mcp-server
Description
CKAN MCP Server versions prior to 0.4.112 expose sensitive information in error messages. When the server encounters non-CKAN responses or internal exceptions, it returns raw upstream response bodies and internal exception details to the caller. This includes hostnames, internal IP addresses, database errors, and stack traces. The issue is addressed in version 0.4.112.
CVSS v3.1
Score 3.7low
Affected software
pkg:github/ondata/ckan-mcp-serverRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-73844 is a vulnerability in ondata's ckan-mcp-server where error handling prior to version 0.4.112 improperly exposes sensitive information. Instead of returning sanitized error messages, the server reflects raw upstream response content and internal exception details back to the caller. This can reveal internal hostnames, IP addresses, database error messages, and stack trace fragments when the server is redirected or pointed to a non-CKAN host or when internal exceptions occur. The vulnerability is fixed in version 0.4.112.
Potential Impact
The vulnerability allows an attacker to obtain sensitive internal information such as hostnames, internal IP addresses, database error messages, and stack trace fragments through error messages. This information disclosure could aid in further attacks or reconnaissance. The CVSS score is 3.7 (low severity), indicating limited impact primarily related to confidentiality.
Mitigation Recommendations
Upgrade ckan-mcp-server to version 0.4.112 or later, where error messages are properly sanitized to avoid leaking sensitive information. No other mitigation is indicated or required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-08-13T17:44:28.643Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7f4ccfbf8831d539722198
Added to database: 08/14/2026, 17:13:51 UTC
Last enriched: 08/14/2026, 17:31:05 UTC
Last updated: 08/14/2026, 18:51:06 UTC
Views: 4
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