Insertion of Sensitive Information into Log File Affecting apostrophe package, versions <4.34.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published25 Oct 2026
- disclosed20 Oct 2026
- creditUnknown
Introduced: 20 Oct 2026
NewCVE-2026-112952 (opens in a new tab)How to fix?
Upgrade apostrophe to version 4.34.0 or higher.
Overview
apostrophe is a content management system (CMS) for Node.js. It supports in-context editing, schema-driven content types, flexible widgets and a great deal more. This module contains everything necessary to build a website with ApostropheCMS.
Affected versions of this package are vulnerable to Insertion of Sensitive Information into Log File due to missing permission and visibility checks in the POST /api/v1/@apostrophecms/doc/slugTaken endpoint. An authenticated attacker, including a user with the editor role, can submit candidate slugs and use the boolean responses to determine whether private pages, drafts, archived content, or admin-only content exist. This allows the attacker to enumerate content they are not authorized to view and map the CMS’s content structure.