CVE-2026-112954 · GHSA-rqgm-cfrp-4hx8
ApostropheCMS: Unauthenticated publicApiProjection bypass via search and sort query builders in the public REST API
- Risk score
- 41/100
- CVSS
- 5.3 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 20 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- ApostropheCMS is an open-source Node.js content management system. Prior to 4.34.0, a public REST API type that uses publicApiProjection can expose excluded searchable or sortable field information through search membership and sort ordering oracles. Returned fields remain filtered by the projection, so the issue perm…
- Affected
- apostrophe (npm) < 4.34.0
- Fix
- Upgrade apostrophe to 4.34.0 or later.
- Exploitation
- No known exploitation
Story map
At a glance
apostrophe: Amber, patch this week. ApostropheCMS has a vulnerability that allows unauthenticated requests to perform upload initialization, chunk storage, and temporary processing, leading to resource exhaustion. An attacker could exploit this to exhaust system resources.
The flaws
- CVE-2026-112954: ApostropheCMS: Unauthenticated publicApiProjection bypass via search and sort query builders in the public REST API (CVSS 5.3 · EPSS 0%)
- CVE-2026-113711: ApostropheCMS: Unauthenticated resource exhaustion via pre-auth aposBigUpload processing in @apostrophecms/import-export (CVSS 7.5 · EPSS 1%)
- CVE-2026-113658: ApostropheCMS: Unauthenticated CSV import requests leave rejected uploads in the system temporary directory (CVSS 7.5 · EPSS 1%)
- CVE-2026-113653: ApostropheCMS: The general public can access @apostrophecms/user objects via a relationship (viewRole is not applied to the general public) (CVSS 6.9 · EPSS 0%)
The fix
Upgrade apostrophe: 4.34.0 · 4.33.0 or later on your release line
Who is exposed: {'products': ['ApostropheCMS'], 'packages': [{'ecosystem': 'npm', 'name': 'apostrophe', 'vulnerable': '< 4.33.0', 'patched': '4.33.0'}, {'ecosystem': 'npm', 'name': '@apostrophecms/import-export', 'vulnerable': '< 3.7.0', 'patched': '3.7.0'}]}
Where it stands
- Public proof of concept
Connects to
- Same weakness: Information disclosure (CWE-200). 197 other warnings in 30 days
Why it is Yellow
- CVSS 5.3 medium
- On your watchlist: npm
Affected packages
| Package | Ecosystem | Vulnerable | Fixed in |
|---|---|---|---|
| apostrophe | npm | < 4.34.0 | 4.34.0 |
References
- https://github.com/advisories/GHSA-rqgm-cfrp-4hx8
- https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-rqgm-cfrp-4hx8
- https://nvd.nist.gov/vuln/detail/CVE-2026-112954
- https://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf498
- https://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5ea
- https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.34.0
- https://github.com/advisories/GHSA-rqgm-cfrp-4hx8
Original description
ApostropheCMS is an open-source Node.js content management system. Prior to 4.34.0, a public REST API type that uses publicApiProjection can expose excluded searchable or sortable field information through search membership and sort ordering oracles. Returned fields remain filtered by the projection, so the issue permits targeted inference about hidden values rather than an unrestricted field dump. This issue is fixed in version 4.34.0.
Last activity 20 Oct 2026. Patch Forecast updates every hour.