CVE-2026-61612 json
@aborruso/ckan-mcp-server has SSRF via DNS-name → internal IP — incomplete fix of CVE-2026-53509
published last mo. modified last mo. also EUVD-2026-84031 , GHSA-798p-78g2-v556
- cvss
- 5.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 33%
- public exploits
- 0
- none known
Summary
CKAN MCP Server is a tool for querying CKAN open data portals. Prior to version 0.4.108, the SSRF guard `validateServerUrl` (added for CVE-2026-33060, extended for CVE-2026-53509) validates only the hostname string and never resolves DNS. Any caller-supplied `server_url` whose hostname *resolves* to an internal address passes the guard, so the server issues requests to loopback and cloud metadata (`169.254.169.254`). This is a third bypass of the same guard, and it reaches IMDS — strictly more than CVE-2026-53509, which only reached loopback. Version 0.4.108 contains an updated fix.
Patch / fix
- npm @aborruso/ckan-mcp-server 0.4.108
- ondata ckan_mcp_server 0.4.85
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last mo.
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 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 | <0.4.108 |
0.4.108 |
Affected products
- ondata ckan-mcp-server
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/ondata/ckan-mcp-server/commit/bb7439b553b9f965adc3d43bcd415c42eebe2f40
web
-
github.com
/ondata/ckan-mcp-server/security/advisories/GHSA-798p-78g2-v556
web
-
github.com
/advisories/GHSA-3xm7-qw7j-qc8v
advisory
-
github.com
/advisories/GHSA-g84h-j7jj-x32p
advisory
-
github.com
/ondata/ckan-mcp-server/releases/tag/v0.4.108
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-61612
advisory
-
github.com
/ondata/ckan-mcp-server
package
Sources
- CVE List CVE-2026-61612
- GitHub Advisory GHSA-798p-78g2-v556
- NVD CVE-2026-61612
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.