CVE-2026-73844: CWE-209: Generation of Error Message Containing Sensitive Information in ondata ckan-mcp-server
CKAN MCP Server is a tool for querying CKAN open data portals. Prior to 0.4.112, error paths reflect raw upstream response bodies and internal exception messages back to the caller instead of a sanitized, generic message. When the server is pointed at (or redirected/SSRF'd to) a host that returns a non-CKAN response, or when an internal exception occurs, the caller receives verbatim upstream content and internal detail (hostnames, internal IPs, DB errors, stack fragments). This vulnerability is fixed in 0.4.112.
AI Analysis
Technical Summary
The vulnerability in ckan-mcp-server versions before 0.4.112 involves the generation of error messages that contain sensitive information. Instead of returning sanitized, generic error messages, the server reflects raw upstream response bodies and internal exception messages back to the caller. This can leak internal hostnames, IP addresses, database error details, and stack fragments when the server is pointed at or redirected to hosts returning non-CKAN responses or when internal exceptions occur. The flaw is classified under CWE-209 (Information Exposure Through an Error Message) and CWE-210 (Information Exposure Through an Error Message). The vulnerability has a CVSS 3.1 base score of 3.7, indicating low severity. The issue is resolved in version 0.4.112.
Potential Impact
The vulnerability allows information disclosure of sensitive internal details through error messages. This could aid an attacker in reconnaissance by revealing internal hostnames, IP addresses, database errors, and stack traces. There is no impact on integrity or availability, and no known exploits are reported in the wild.
Mitigation Recommendations
Upgrade ckan-mcp-server to version 0.4.112 or later, where this vulnerability is fixed. 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 is a tool for querying CKAN open data portals. Prior to 0.4.112, error paths reflect raw upstream response bodies and internal exception messages back to the caller instead of a sanitized, generic message. When the server is pointed at (or redirected/SSRF'd to) a host that returns a non-CKAN response, or when an internal exception occurs, the caller receives verbatim upstream content and internal detail (hostnames, internal IPs, DB errors, stack fragments). This vulnerability is fixed in 0.4.112.
CVSS v3.1
Score 3.7low
Affected software
ondata
ckan-mcp-server
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
The vulnerability in ckan-mcp-server versions before 0.4.112 involves the generation of error messages that contain sensitive information. Instead of returning sanitized, generic error messages, the server reflects raw upstream response bodies and internal exception messages back to the caller. This can leak internal hostnames, IP addresses, database error details, and stack fragments when the server is pointed at or redirected to hosts returning non-CKAN responses or when internal exceptions occur. The flaw is classified under CWE-209 (Information Exposure Through an Error Message) and CWE-210 (Information Exposure Through an Error Message). The vulnerability has a CVSS 3.1 base score of 3.7, indicating low severity. The issue is resolved in version 0.4.112.
Potential Impact
The vulnerability allows information disclosure of sensitive internal details through error messages. This could aid an attacker in reconnaissance by revealing internal hostnames, IP addresses, database errors, and stack traces. There is no impact on integrity or availability, and no known exploits are reported in the wild.
Mitigation Recommendations
Upgrade ckan-mcp-server to version 0.4.112 or later, where this vulnerability is fixed. 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
Threat ID: 6a7f4ccfbf8831d539722198
Added to database: 08/14/2026, 17:13:51 UTC
Last enriched: 08/22/2026, 13:07:54 UTC
Last updated: 09/29/2026, 01:47:44 UTC
Views: 72
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