CVE-2026-73846

MediumCVSS 6.5

Published: 14/08/2026(UTC)Updated: 17/08/2026(UTC)Translated: 14/08/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.14%

4th percentile - higher than 4% of all known CVEs

Summary

CKAN MCP Server before 0.4.112 contains a vulnerability in canonicalizeParams in src/utils/cache.ts that serializes request parameters with unescaped ampersand, equals-sign, and vertical-bar delimiters, allowing different logical parameter sets used by buildCacheKey to collide. An attacker can prime a shared cache with a response for a victim's distinct query.

Risk Assessment

An attacker can poison the cache, potentially serving false data to users or compromising data integrity.

Recommendation

Upgrade CKAN MCP Server to version 0.4.112 or later.

Original NVD description (English source)

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.