CVE-2026-49453

Joplin (open-source note-taking app) contains a path traversal in its resource synchronization mechanism prior to versions 3.6.15 and 3.7.2 . The root cause is that synchronized resource metadata fields (id or file_extension) are stored unvalidated by BaseItem.unserialize(), then concatenated int...

CVE-2026-49453 Joplin: Path traversal in resource sync — silent arbitrary file write outside the resource directory

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.6.15 and 3.7.2, Joplin accepts synchronized resource metadata whose id or fileextension contains parent-directory or path-separator characters. BaseItem.unserialize stores the...