{"schema_version":"1.9.0","id":"GHSA-vh56-5m88-39rq","published":"2026-10-21T17:15:21Z","modified":"2026-10-21T17:28:22.096678767Z","aliases":["CVE-2026-112957"],"summary":"ApostropheCMS: GET /api/v1/@apostrophecms/page/:id bypasses viewRole restriction and exposes viewPermission-gated fields to lower-privileged users","details":"### Summary\nThe `getOne` REST endpoint for pages does not apply `viewRole` type-level restrictions\nor `viewPermission` field-level redaction. An editor-level user who knows a document\n`_id` can read the full content of admin-only pages and their privileged fields, while\nthe `getAll` endpoint correctly enforces both restrictions.\n\n### Details\n**Finding 3 — viewRole bypass:**\n`modules/@apostrophecms/page/index.js` exposes `getRestQuery(req, omitPermissionCheck =\nfalse)`. The `getAll` path calls `publicApiCheckAsync` and threads the full query builder\npipeline including `viewRole` filtering. The `getOne` path uses a divergent code path\nthat skips this pipeline.\n\nA page type declared with `viewRole: 'admin'` is inaccessible via `GET\n/api/v1/@apostrophecms/page?type=secretPage` (returns 403 to an editor) but is fully\nreturned by `GET /api/v1/@apostrophecms/page/:id:en:published` to the same editor.\n\n**Finding 4 — viewPermission field leak:**\nFields decorated with `viewPermission: { action: 'edit', type: '@apostrophecms/page' }`\nare stripped by `removeForbiddenFields` in the `getAll` path but are returned verbatim\nin `getOne`. An editor who knows any document `_id` can read all\n`viewPermission`-restricted fields.\n\n### PoC\n```bash\n# Log in as editor, get session jar\nEDITOR_JAR=\"...\"\n\n# getAll — correctly blocked\ncurl -b \"$EDITOR_JAR\" \\\n  \"http://TARGET/api/v1/@apostrophecms/page?type=secretPage\"\n# → 403 Forbidden\n\n# getOne — bypassed, returns full document including viewPermission fields\ncurl -b \"$EDITOR_JAR\" \\\n  \"http://TARGET/api/v1/@apostrophecms/page/ADMIN_PAGE_ID:en:published\"\n# → 200 OK, full doc including secretField value\n```\n\n### Impact\nEditors can read the full content of any page — including those restricted to admins via\n`viewRole` — if they know or can guess the `_id`. Sensitive field values gated by\n`viewPermission` are also fully exposed. This breaks the content access control model\nfor any site using these decorators.","affected":[{"package":{"name":"apostrophe","ecosystem":"npm","purl":"pkg:npm/apostrophe"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"4.34.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-vh56-5m88-39rq/GHSA-vh56-5m88-39rq.json"}}],"references":[{"type":"WEB","url":"https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-vh56-5m88-39rq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112957"},{"type":"WEB","url":"https://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf498"},{"type":"WEB","url":"https://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5ea"},{"type":"PACKAGE","url":"https://github.com/apostrophecms/apostrophe"},{"type":"WEB","url":"https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.34.0"}],"database_specific":{"cwe_ids":["CWE-862"],"github_reviewed":true,"github_reviewed_at":"2026-10-21T17:15:21Z","nvd_published_at":"2026-10-20T17:17:33Z","severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}