CVE-2026-113660 ApostropheCMS: Authenticated Object-Level Authorization Bypass in exist-in-locale Reveals Restricted Localized Draft Identifiers

Medium 4.3 Published Updated
Exploited in the wild
Not known
Fix
Available

What is CVE-2026-113660?

CVE-2026-113660 is a medium-severity vulnerability in apostrophecms apostrophe, published on 20 Oct 2026.

Official description

ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, ApostropheCMS’s exist-in-locale API allows an authenticated low-privilege user to determine whether restricted documents exist in a specified locale and mode, including draft mode. The endpoint returns localized document identifiers without applying document-level view or edit authorization criteria. This issue is fixed in version 4.33.0.

Weakness: CWE-862

Which versions are affected by CVE-2026-113660?

2 open source packages ship an affected version, including apostrophe.

PackageAffectedFixed in
apostrophe npmAll versions4.33.0
apostrophe npmAll versions4.33.0

How do I fix CVE-2026-113660?

Upgrade apostrophe to 4.33.0 or later.

Is CVE-2026-113660 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-113660 exists.

Sources

Also known as GHSA-vmxh-77cw-65j7.

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