What is CVE-2026-73844?

CVE-2026-73844 is a low-severity vulnerability in Ondata Ckan-Mcp-Server, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 3.7/10. Published 2026-08-14.

How severe is CVE-2026-73844?

Low severity. CVSS v3 base score is 3.7 out of 10.

Information disclosure in Ondata Ckan-Mcp-Server

CVE-2026-73844

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 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Ondata Ckan-mcp-server — versions < 0.4.112

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-73844?: CVE-2026-73844 is a low-severity vulnerability in Ondata Ckan-Mcp-Server, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 3.7/10. Published 2026-08-14.
How severe is CVE-2026-73844?: Low severity. CVSS v3 base score is 3.7 out of 10.