CVE-2026-73846
CKAN MCP Server: Cache-key canonicalization collision enables cache confusion / poisoning
MEDIUM 6.5EPSS 0.2%
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
- ondata · ckan-mcp-server
- CVSS v3.1 GITHUB
- 6.5 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N - EPSS
- 0.19% chance of exploitation in the next 30 days, 9th percentile
- Published
- 2026-08-14
- Updated
- 2026-08-17