{"items":[{"id":"NVI-00013919","kind":"vulnerability","title":"CKAN MCP Server: Cache-key canonicalization collision enables cache confusion / poisoning","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-78x9-fhhx-v2g6","CVE-2026-73846"],"plain_summary":"GitHub lists this reviewed advisory for @aborruso/ckan-mcp-server. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0a61293edb33b511ebbf6ad8e6c20c80"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-03T14:49:23.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1da7b9ac88b3164428272f56ed142962"},{"kind":"EPSS","as_of":"2026-11-05T12:03:04.000Z","value":"0.194%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.09224. Missing scores are unknown.","source_id":"sr-0a61293edb33b511ebbf6ad8e6c20c80"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-1da7b9ac88b3164428272f56ed142962","url":"https://github.com/advisories/GHSA-78x9-fhhx-v2g6","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-78x9-fhhx-v2g6","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T02:21:29.477Z"},{"id":"sr-0a61293edb33b511ebbf6ad8e6c20c80","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-73846","publisher":"FIRST EPSS","observed_at":"2026-11-06T07:17:46.397Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1da7b9ac88b3164428272f56ed142962"],"technology":"@aborruso/ckan-mcp-server","known_exclusions":[],"conditions_summary":"## Summary\n\nThe response cache derives its key from an ambiguous string serialization of the request parameters. `canonicalizeParams` joins sorted `${key}=${value}` pairs with `&` and does not escape `&`, `=`, or the `|` field separators used in `buildCacheKey`. Two **different** logical parameter sets can therefore serialize to the **same** key and share one cache entry. Because the cached value is whatever the upstream returned for whichever request populated the entry first, an attacker can prime a colliding key so a victim's distinct query (same `server_url`) is served the attacker's cached response.\n\n## Affected code\n\n```js\n// src/utils/cache.ts\nexport function canonicalizeParams(params) {\n  const keys = Object.keys(params).sort();\n  const pairs = [];\n  for (const key of keys) {\n    const value = params[key];\n    if (value === undefined || value === null) continue;\n    const serialized = typeof value === \"object\" ? JSON.stringify(value) : String(value);\n    pairs.push(`${key}=${serialized}`);        // value not escaped\n  }\n  return pairs.join(\"&\");                        // '&' delimiter, injectable\n}\n\nexport async function buildCacheKey(serverUrl, action, params) {\n  const r","public_affected_ranges":["< 0.4.112"]}],"null_published_at":"2026-11-08T15:11:49.418Z","source_updated_at":"2026-09-03T14:49:23.000Z","source_disclosed_at":"2026-09-03T14:49:22.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-02T02:21:29.477Z"},{"id":"NVI-00013919","kind":"vulnerability","title":"CKAN MCP Server: Cache-key canonicalization collision enables cache confusion / poisoning","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-78x9-fhhx-v2g6","CVE-2026-73846"],"plain_summary":"GitHub lists this reviewed advisory for @aborruso/ckan-mcp-server. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-1da7b9ac88b3164428272f56ed142962"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-03T14:49:23.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1da7b9ac88b3164428272f56ed142962"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-1da7b9ac88b3164428272f56ed142962","url":"https://github.com/advisories/GHSA-78x9-fhhx-v2g6","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-78x9-fhhx-v2g6","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T02:21:29.477Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1da7b9ac88b3164428272f56ed142962"],"technology":"@aborruso/ckan-mcp-server","known_exclusions":[],"conditions_summary":"## Summary\n\nThe response cache derives its key from an ambiguous string serialization of the request parameters. `canonicalizeParams` joins sorted `${key}=${value}` pairs with `&` and does not escape `&`, `=`, or the `|` field separators used in `buildCacheKey`. Two **different** logical parameter sets can therefore serialize to the **same** key and share one cache entry. Because the cached value is whatever the upstream returned for whichever request populated the entry first, an attacker can prime a colliding key so a victim's distinct query (same `server_url`) is served the attacker's cached response.\n\n## Affected code\n\n```js\n// src/utils/cache.ts\nexport function canonicalizeParams(params) {\n  const keys = Object.keys(params).sort();\n  const pairs = [];\n  for (const key of keys) {\n    const value = params[key];\n    if (value === undefined || value === null) continue;\n    const serialized = typeof value === \"object\" ? JSON.stringify(value) : String(value);\n    pairs.push(`${key}=${serialized}`);        // value not escaped\n  }\n  return pairs.join(\"&\");                        // '&' delimiter, injectable\n}\n\nexport async function buildCacheKey(serverUrl, action, params) {\n  const r","public_affected_ranges":["< 0.4.112"]}],"null_published_at":"2026-11-02T10:00:37.174Z","source_updated_at":"2026-09-03T14:49:23.000Z","source_disclosed_at":"2026-09-03T14:49:22.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-02T02:21:29.477Z"}],"next_cursor":null,"snapshot_revision":"42594"}