Vulnerability · Published Oct 20, 2026 · Assigned by GitHub_M
CVE-2026-113666ApostropheCMS: Authenticated projection-exclusion prototype-member deletion in @apostrophecms/db-connect causes process-wide denial of service
High 7.1
In plain English
A high-severity uncontrolled resource consumption in apostrophe from apostrophecms. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
ApostropheCMS is an open-source Node.js content management system. Prior to 1.1.0 of db-connect and 4.33.0 of ApostropheCMS, an account with view-draft access can submit a projection exclusion path that traverses through a constructor prototype chain to a shared prototype member when a consumer uses a SQLite, PostgreSQL, or multipostgres adapter and has a matching document. Every editing role has view-draft access, while guestApiAccess broadens this prerequisite to any logged-in account. The unsetNestedField helper then deletes the shared runtime member, causing persistent process-wide integrity and availability effects; the default MongoDB adapter is not affected. This issue is fixed in db-connect 1.1.0 and ApostropheCMS 4.33.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @apostrophecms/db-connect | 1.1.0 | GHSA-j5rq-xfvr-p969 |
| npm | apostrophe | 4.33.0 | GHSA-j5rq-xfvr-p969 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| apostrophecms | apostrophe | < 4.33.0 |
| @apostrophecms | db-connect | < 1.1.0 |
Weakness: CWE-400, CWE-1321 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
References
- https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-j5rq-xfvr-p969 x_refsource_CONFIRM
- https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce x_refsource_MISC
- https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350 x_refsource_MISC
- https://github.com/apostrophecms/apostrophe/releases/tag/@apostrophecms/db-connect@1.1.0 x_refsource_MISC
- https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.33.0 x_refsource_MISC