GHSA-3xm7-qw7j-qc8v

Source

https://github.com/advisories/GHSA-3xm7-qw7j-qc8v

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-3xm7-qw7j-qc8v/GHSA-3xm7-qw7j-qc8v.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-3xm7-qw7j-qc8v

Aliases

CVE-2026-33060

Related

CVE (2)

Published

2026-03-18T12:59:42Z

Modified

2026-09-23T03:56:42Z

Severity

5.7 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N CVSS Calculator

Summary

SSRF in @aborruso/ckan-mcp-server via base_url allows access to internal networks

Details

Summary

The @aborruso/ckan-mcp-server MCP server provides 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.

Severity

Attack complexity is HIGH because exploitation requires prompt injection via malicious content (webpage, document) while the victim's AI assistant has this MCP server connected.

Proof of Concept

Tested inside Docker-in-Docker isolated environment with canary HTTP sidecar.

{"tool": "ckan_package_search", "arguments": {"base_url": "http://canary:8080/ssrf", "query": "test"}}

Result: Canary received 9 HTTP requests. The high request volume confirms no rate limiting or URL validation.

Root Cause

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.

Impact

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.

Recommended Fix

Validate base_url against a configurable allowlist of permitted CKAN portals
Block private IP ranges (RFC 1918, link-local)
Block cloud metadata endpoints (169.254.169.254)
Sanitize SQL input for datastore queries
SPARQL endpoint allowlist

Credit

Discovered by Andrei Boldyrev of Munio Security Research using munio

Database specific

{
    "cwe_ids":  [
        "CWE-918"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-03-18T12:59:42Z",
    "nvd_published_at":  "2026-03-20T08:16:11Z",
    "severity":  "MODERATE"
}

References

Affected packages

npm / @aborruso/ckan-mcp-server

Package

Name: @aborruso/ckan-mcp-server; View open source insights on deps.dev
Purl: pkg:npm/%40aborruso/ckan-mcp-server

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

0.4.85

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-3xm7-qw7j-qc8v/GHSA-3xm7-qw7j-qc8v.json"