CVE-2026-112957 ApostropheCMS: GET /api/v1/@apostrophecms/page/:id bypasses viewRole restriction and exposes viewPermission-gated fields to lower-privileged users

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

What is CVE-2026-112957?

CVE-2026-112957 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 4.34.0, the getOne REST endpoint for pages does not apply viewRole type-level restrictions or viewPermission field-level redaction. An editor-level user who knows a document _id can read the full content of admin-only pages and their privileged fields, while the getAll endpoint correctly enforces both restrictions. This issue is fixed in version 4.34.0.

Weakness: CWE-862

Which versions are affected by CVE-2026-112957?

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

PackageAffectedFixed in
apostrophe npmAll versions4.34.0
apostrophe npmAll versions4.34.0

How do I fix CVE-2026-112957?

Upgrade apostrophe to 4.34.0 or later.

Is CVE-2026-112957 being exploited?

There is no known exploitation of CVE-2026-112957 in the wild and no public exploit code.

Sources

Also known as GHSA-vh56-5m88-39rq.

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