CVE-2026-33060Public exploitNetwork attack vector

Internal service access via unrestricted base URLs

Published Mar 20, 2026 · Updated Mar 20, 2026

SSRF in onData CKAN MCP Server before 0.4.85 allows remote authenticated users to access internal services through crafted base URLs. The ckan_package_search, sparql_query, and datastore SQL tools pass caller-controlled base URLs to outbound HTTP requests without destination validation or private-address blocking. Exploitation requires prompt injection while an AI assistant has the server connected and exposes internal hosts or cloud metadata responses.

CVSS severity5.3
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in onData CKAN MCP Server before 0.4.85 allows remote authenticated users to access internal services through crafted base URLs. The ckan_package_search, sparql_query, and datastore SQL tools pass caller-controlled base URLs to outbound HTTP requests without destination validation or private-address blocking. Exploitation requires prompt injection while an AI assistant has the server connected and exposes internal hosts or cloud metadata responses.

The record

CVE
CVE-2026-33060
Published
Mar 20, 2026
Updated
Mar 20, 2026
Vendor
onData
Product
CKAN MCP Server
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.4.85

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

onData · CKAN MCP Serverversion=< 0.4.85

Published CVSS scores

5.7NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
5.3GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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