{"id":"CVE-2026-73846","title":"CKAN MCP Server is a tool for querying CKAN open data portals","summary":"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 differen…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N","cwe":["CWE-345","CWE-436"],"vendor":"aborruso","product":"@aborruso/ckan-mcp-server","affected":["@aborruso/ckan-mcp-server < 0.4.112"],"patched":["@aborruso/ckan-mcp-server 0.4.112"],"published":"2026-08-14","updated":"2026-09-18","sourceUpdated":"2026-09-18T20:09:01.757","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73846","references":[{"url":"https://github.com/ondata/ckan-mcp-server/commit/8e1522f9bbfa1f3b21550f17887f60f133e24151","label":"security-advisories@github.com"},{"url":"https://github.com/ondata/ckan-mcp-server/releases/tag/v0.4.112","label":"security-advisories@github.com"},{"url":"https://github.com/ondata/ckan-mcp-server/security/advisories/GHSA-78x9-fhhx-v2g6","label":"security-advisories@github.com"},{"url":"https://github.com/ondata/ckan-mcp-server/security/advisories/GHSA-78x9-fhhx-v2g6","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73846"},{"url":"https://github.com/advisories/GHSA-78x9-fhhx-v2g6"}],"tags":["nvd","ghsa","npm"],"epss":0.00167,"epssPercentile":0.06399,"aliases":["GHSA-78x9-fhhx-v2g6"],"ecosystem":"npm","ingestedAt":"2026-09-03T15:04:38.619Z","slug":"CVE-2026-73846","body":"## Overview\n\nCKAN 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-73846)\n\nAffected packages:\n\n- `@aborruso/ckan-mcp-server < 0.4.112`\n\nPatched in:\n\n- `@aborruso/ckan-mcp-server 0.4.112`\n\nSource: https://github.com/advisories/GHSA-78x9-fhhx-v2g6","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}