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.

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

Q: 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.

Q: How is CVE-2026-112957 attacked?

It is attacked over the network, in a software library.

Q: 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.

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, apostrophe (npm). Vendors: ApostropheCMS, 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
```
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

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