Medium 6.5Published Aug 14, 2026

CVE-2026-73846CKAN MCP Server: Cache-key canonicalization collision enables cache confusion / poisoning

Updated under an hour ago (2026-10-19 06:25 UTC)

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Every CVE for ondata ckan-mcp-server

Exploited in the last 30 days

CKAN MCP Server is a tool for querying CKAN open data portals. Prior to 0.4.112, canonicalizeParams in src/utils/cache.ts serializes request parameters with unescaped ampersand, equals-sign, and vertical-bar delimiters, allowing different logical parameter sets used by buildCacheKey to collide and an attacker to prime a shared cache with a response for a victim's distinct query. This issue is fixed in version 0.4.112.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
Weakness (CWE): CWE-345, CWE-436
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ondata ckan-mcp-server ondata:ckan_mcp_server (from the name)	before 0.4.112	CNA record

References

https://github.com/ondata/ckan-mcp-server/security/advisories/GHSA-78x9-fhhx-v2g6x-refsource-confirm
https://github.com/ondata/ckan-mcp-server/commit/8e1522f9bbfa1f3b21550f17887f60f133e24151x-refsource-misc
https://github.com/ondata/ckan-mcp-server/releases/tag/v0.4.112x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.