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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-73846

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

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

ondata ckan-mcp-server

  • < 0.4.112affected

References