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VulnerabilityPublished Updated

CVE-2026-73844: ondata ckan-mcp-server · Generation of Error Message Containing Sensitive Information

Affects ondata ckan-mcp-serverSource CVE Database V5

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Not known to be exploited · CVSS 3.7 Low : upgrade to 0.4.112 when convenient.

Data as of 12 Nov 2026, 23:24 UTC

CVSS 3.1 base score
3.7Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 29% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.4.112
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Upgrade ckan-mcp-server and ondata/ckan-mcp-server to 0.4.112.

Affected software

ProductAffectedFixed in
ondatackan-mcp-serverAffected
  • <0.4.112
Fixed in
  • 0.4.112
GitHubondata/ckan-mcp-serverpkg:github/ondata/ckan-mcp-serverOther threatsAffected
  • <0.4.112
Fixed in
  • 0.4.112

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade ckan-mcp-server to version 0.4.112 or later, where this vulnerability is fixed. No other mitigation is indicated or required.

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.

References

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