CVE-2026-73846
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…
Does this matter?
Lower severity and a low EPSS score (0.14%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
- EPSS
- 0.14% probability · 3th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-345, CWE-436
- Source
- security-advisories@github.com
References
- https://github.com/ondata/ckan-mcp-server/commit/8e1522f9bbfa1f3b21550f17887f60f133e24151
- https://github.com/ondata/ckan-mcp-server/releases/tag/v0.4.112
- https://github.com/ondata/ckan-mcp-server/security/advisories/GHSA-78x9-fhhx-v2g6
- https://github.com/ondata/ckan-mcp-server/security/advisories/GHSA-78x9-fhhx-v2g6
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.