Is CVE-2026-73846 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-73846?

CVE-2026-73846 has a CVSS v3 severity of MEDIUM (6.5).

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CVE-2026-73846

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.