# CVE-2026-112957: ApostropheCMS REST API authorization bypass in getOne endpoint

Source: https://junglewise.ai/threats/cve-2026-112957-apostrophecms-is-an-open-source-node-js-content-management  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

CVE-2026-112957 · Severity: medium · CVSS 4.3 · Published 2026-10-20

ApostropheCMS is an open-source Node.js content management system used for building and managing websites. Prior to version 4.34.0, the getOne REST endpoint for pages fails to enforce access controls, allowing users with editor-level privileges to read the complete content of admin-only pages and sensitive fields if they know the page identifier. This could lead to unauthorized exposure of confidential content and administrator notes.

Technologies: [ApostropheCMS Apostrophe](https://junglewise.ai/threats/technologies/apostrophecms-apostrophe), [apostrophe (npm)](https://junglewise.ai/threats/technologies/apostrophe). Vendors: [ApostropheCMS](https://junglewise.ai/threats/vendors/apostrophecms), [npm](https://junglewise.ai/threats/vendors/npm).

## Quick answers

**Is CVE-2026-112957 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-112957 being exploited in the wild.

**How severe is CVE-2026-112957?** Medium severity, with a CVSS score of 4.3, published 20 October 2026.

**Which products and versions are affected?** ApostropheCMS Apostrophe before 4.34.0; apostrophe (npm) < 4.34.0, SEMVER:introduced=0,fixed=4.34.0.

**Is there a fix for CVE-2026-112957?** Yes. apostrophe (npm): upgrade to 4.34.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-112957 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-112957?** Check whether you run ApostropheCMS Apostrophe or apostrophe (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- apostrophe (npm): upgrade to 4.34.0 or later

  ```sh
  npm install apostrophe@4.34.0
  ```


## Technical details

The getOne REST endpoint for pages does not apply viewRole type-level restrictions or viewPermission field-level redaction, while the getAll endpoint correctly enforces both controls. An authenticated editor-level user who obtains a document ID can bypass access controls through the getOne endpoint to retrieve admin-only content and privileged fields. The vulnerability is fixed in version 4.34.0.

## Affected products

- ApostropheCMS Apostrophe before 4.34.0

## Identifiers

- CVE-2026-112957
- GHSA-vh56-5m88-39rq

## Timeline

- 2026-10-20: disclosed
- 2026-10-14: patched

## References

- [https://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf498](https://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf498)
- [https://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5ea](https://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5ea)

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