CVE-2026-40265 — Note Mark has Broken Access Control on Asset Download
Note Mark is an open-source note-taking application. In versions 0.19.1 and prior, the asset download endpoint at /api/notes/{noteID}/assets/{assetID} is registered without auth…
Published: 2026-04-16 · CVSS: 5.9 · CVSS 3.1
Note Mark is an open-source note-taking application. In versions 0.19.1 and prior, the asset download endpoint at /api/notes/{noteID}/assets/{assetID} is registered without authentication middleware, and the backend query does not verify ownership or book visibility. An unauthenticated user who knows a valid note ID and asset ID can retrieve the full contents of private note assets without authentication, regardless of whether the associated book is public or private. This issue has been fixed in version 0.19.2.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7