CVE-2026-33060 json
CKAN MCP Server: SSRF via base_url allows access to internal networks
published 2026-03-18 7 mo ago modified 2026-09-23 47 d ago also GHSA-3xm7-qw7j-qc8v , EUVD-2026-13620
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 22%
- public exploits
- 0
- none known
Summary
CKAN MCP Server is a tool for querying CKAN open data portals. Versions prior to 0.4.85 provide tools including ckan_package_search and sparql_query that accept a base_url parameter, making HTTP requests to arbitrary endpoints without restriction. A CKAN portal client has no legitimate reason to contact cloud metadata or internal network services. There is no URL validation on base_url parameter. No private IP blocking (RFC 1918, link-local 169.254.x.x), no cloud metadata blocking. The sparql_query and ckan_datastore_search_sql tools also accept arbitrary base URLs and expose injection surfaces. An attack can lead to internal network scanning, cloud metadata theft (IAM credentials via IMDS at 169.254.169.254), potential SQL/SPARQL injection via unsanitized query parameters. Attack requires prompt injection to control the base_url parameter. This issue has been fixed in version 0.4.85.
Patch / fix
- npm @aborruso/ckan-mcp-server 0.4.85
- ondata ckan_mcp_server 0.4.85
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/ondata/ckan-mcp-server/security/advisories/GHSA-3xm7-qw7j-qc8v referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 3.1 | 5.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 5.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | @aborruso/ckan-mcp-server | <0.4.85 |
0.4.85 |
Affected products
- ondata ckan-mcp-server
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/kysely-org/kysely/commit/0a602bff2f442f6c26d5e047ca8f8715179f6d24
web, patch
-
github.com
/ondata/ckan-mcp-server/security/advisories/GHSA-3xm7-qw7j-qc8v
web, exploit, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-33060
advisory
-
github.com
/ondata/ckan-mcp-server
package
Sources
- CVE List CVE-2026-33060
- GitHub Advisory GHSA-3xm7-qw7j-qc8v
- NVD CVE-2026-33060
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