{"items":[{"id":"NVI-00015037","kind":"vulnerability","title":"Apostrophe has Server-Side Prototype Pollution in apos.util.set via patch operators that leads to process-wide authorization bypass","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6h5j-32cf-4253","CVE-2026-53609"],"plain_summary":"GitHub lists this reviewed advisory for apostrophe. 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-00f6e9ac9e0ba44c91eedc2653bacf5d"],"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":"2026-07-31T21:49:26.000Z","value":"9.1 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-0ebe618a729cf8a38e15a09357ca982a"},{"kind":"EPSS","as_of":"2026-11-05T12:03:04.000Z","value":"0.346%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.28271. Missing scores are unknown.","source_id":"sr-00f6e9ac9e0ba44c91eedc2653bacf5d"}],"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-0ebe618a729cf8a38e15a09357ca982a","url":"https://github.com/advisories/GHSA-6h5j-32cf-4253","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-6h5j-32cf-4253","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:33.950Z"},{"id":"sr-00f6e9ac9e0ba44c91eedc2653bacf5d","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-2026-53609","publisher":"FIRST EPSS","observed_at":"2026-11-06T07:17:46.382Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0ebe618a729cf8a38e15a09357ca982a"],"technology":"apostrophe","known_exclusions":[],"conditions_summary":"\n\n## Summary\n\n`apos.util.set()` traverses dot-notation paths without sanitizing `__proto__`, allowing an authenticated editor to write arbitrary values to `Object.prototype` via the `$pullAll` patch operator.\n\nA confirmed gadget in `publicApiCheck()` causes this to bypass authorization on all piece-type REST API endpoints for every subsequent unauthenticated request, for the lifetime of the Node.js process.\n\n---\n\n## Details\n\n### Root Cause — `apos.util.set()` (`modules/@apostrophecms/util/index.js` ~line 800)\n\nThe function splits a dot-notation path and traverses properties without rejecting `__proto__`, `constructor`, or `prototype`:\n\n```js\nset(o, path, v) {\n  path = path.split('.');\n  for (i = 0; i < path.length - 1; i++) {\n    o = o[path[i]];   // when path[i] === '__proto__', o becomes Object.prototype\n  }\n  o[path[i]] = v;     // mutates Object.prototype\n}\n```\n\n### Source — `implementPatchOperators()` (`modules/@apostrophecms/schema/index.js` ~line 1737)\n\nUser-controlled keys from the `$pullAll` operator are passed directly to `apos.util.set()`:\n\n","public_affected_ranges":["<= 4.30.0"]}],"null_published_at":"2026-11-07T07:07:42.511Z","source_updated_at":"2026-07-31T21:49:26.000Z","source_disclosed_at":"2026-07-31T21:49:25.000Z","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":"2026-11-03T09:58:33.950Z"},{"id":"NVI-00015037","kind":"vulnerability","title":"Apostrophe has Server-Side Prototype Pollution in apos.util.set via patch operators that leads to process-wide authorization bypass","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6h5j-32cf-4253","CVE-2026-53609"],"plain_summary":"GitHub lists this reviewed advisory for apostrophe. 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-02de4b852e35b424a9006815b70e0cb9"],"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":"2026-07-31T21:49:26.000Z","value":"9.1 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-0ebe618a729cf8a38e15a09357ca982a"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.346%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.28184. Missing scores are unknown.","source_id":"sr-02de4b852e35b424a9006815b70e0cb9"}],"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-0ebe618a729cf8a38e15a09357ca982a","url":"https://github.com/advisories/GHSA-6h5j-32cf-4253","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-6h5j-32cf-4253","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:33.950Z"},{"id":"sr-02de4b852e35b424a9006815b70e0cb9","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-2026-53609","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:44:07.787Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0ebe618a729cf8a38e15a09357ca982a"],"technology":"apostrophe","known_exclusions":[],"conditions_summary":"\n\n## Summary\n\n`apos.util.set()` traverses dot-notation paths without sanitizing `__proto__`, allowing an authenticated editor to write arbitrary values to `Object.prototype` via the `$pullAll` patch operator.\n\nA confirmed gadget in `publicApiCheck()` causes this to bypass authorization on all piece-type REST API endpoints for every subsequent unauthenticated request, for the lifetime of the Node.js process.\n\n---\n\n## Details\n\n### Root Cause — `apos.util.set()` (`modules/@apostrophecms/util/index.js` ~line 800)\n\nThe function splits a dot-notation path and traverses properties without rejecting `__proto__`, `constructor`, or `prototype`:\n\n```js\nset(o, path, v) {\n  path = path.split('.');\n  for (i = 0; i < path.length - 1; i++) {\n    o = o[path[i]];   // when path[i] === '__proto__', o becomes Object.prototype\n  }\n  o[path[i]] = v;     // mutates Object.prototype\n}\n```\n\n### Source — `implementPatchOperators()` (`modules/@apostrophecms/schema/index.js` ~line 1737)\n\nUser-controlled keys from the `$pullAll` operator are passed directly to `apos.util.set()`:\n\n","public_affected_ranges":["<= 4.30.0"]}],"null_published_at":"2026-11-04T10:04:41.538Z","source_updated_at":"2026-07-31T21:49:26.000Z","source_disclosed_at":"2026-07-31T21:49:25.000Z","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":"2026-11-03T09:58:33.950Z"},{"id":"NVI-00015037","kind":"vulnerability","title":"Apostrophe has Server-Side Prototype Pollution in apos.util.set via patch operators that leads to process-wide authorization bypass","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6h5j-32cf-4253","CVE-2026-53609"],"plain_summary":"GitHub lists this reviewed advisory for apostrophe. 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-0ebe618a729cf8a38e15a09357ca982a"],"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":"2026-07-31T21:49:26.000Z","value":"9.1 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-0ebe618a729cf8a38e15a09357ca982a"}],"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-0ebe618a729cf8a38e15a09357ca982a","url":"https://github.com/advisories/GHSA-6h5j-32cf-4253","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-6h5j-32cf-4253","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:33.950Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0ebe618a729cf8a38e15a09357ca982a"],"technology":"apostrophe","known_exclusions":[],"conditions_summary":"\n\n## Summary\n\n`apos.util.set()` traverses dot-notation paths without sanitizing `__proto__`, allowing an authenticated editor to write arbitrary values to `Object.prototype` via the `$pullAll` patch operator.\n\nA confirmed gadget in `publicApiCheck()` causes this to bypass authorization on all piece-type REST API endpoints for every subsequent unauthenticated request, for the lifetime of the Node.js process.\n\n---\n\n## Details\n\n### Root Cause — `apos.util.set()` (`modules/@apostrophecms/util/index.js` ~line 800)\n\nThe function splits a dot-notation path and traverses properties without rejecting `__proto__`, `constructor`, or `prototype`:\n\n```js\nset(o, path, v) {\n  path = path.split('.');\n  for (i = 0; i < path.length - 1; i++) {\n    o = o[path[i]];   // when path[i] === '__proto__', o becomes Object.prototype\n  }\n  o[path[i]] = v;     // mutates Object.prototype\n}\n```\n\n### Source — `implementPatchOperators()` (`modules/@apostrophecms/schema/index.js` ~line 1737)\n\nUser-controlled keys from the `$pullAll` operator are passed directly to `apos.util.set()`:\n\n","public_affected_ranges":["<= 4.30.0"]}],"null_published_at":"2026-11-03T10:03:26.538Z","source_updated_at":"2026-07-31T21:49:26.000Z","source_disclosed_at":"2026-07-31T21:49:25.000Z","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":"2026-11-03T09:58:33.950Z"}],"next_cursor":null,"snapshot_revision":"42594"}