CVE-2026-113666

High

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.

SeverityHigh
CVSS7.1
Exploit probability—
ProductApostrophe
PublishedOct 20, 2026
First seenOct 20, 2026

How to fix

Update
  • apostrophe4.33.0 or later
  • @apostrophecms/db-connect1.1.0 or later

Affected products

ProductAffected versionsFixed in
apostrophenpmv < 4.33.04.33.0
@apostrophecms/db-connectnpmv < 1.1.01.1.0

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