CVE-2026-35613

Medium

Description

coursevault-preview is a utility for previewing course material files from a configured directory. coursevault-preview versions prior to 0.1.1 contain a path traversal vulnerability in the resolveSafe utility. The boundary check used String.prototype.startsWith(baseDir) on a normalized path, which does not enforce a directory boundary. An attacker who controls the relativePath argument to affected CoursevaultPreview methods may be able to read files outside the configured baseDir when a sibling directory exists whose name shares the same string prefix. This vulnerability is fixed in 0.1.1.

SeverityMedium
CVSS5.1
Exploit probability—
ProductMoritzmyrz Coursevault-preview
PublishedApr 7, 2026
First seenApr 7, 2026

How to fix

Update
  • moritzmyrz coursevault-preview0.1.1 or later
  • coursevault-preview0.1.1 or later

Affected products

ProductAffected versionsFixed in
moritzmyrz coursevault-previewv < 0.1.10.1.1
coursevault-previewnpmv < 0.1.10.1.1

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