CVE-2026-22810
Joplin: Path traversal in OneNote importer allows overwriting arbitrary files
- State
- Published
- Severity
- 8.2 High
- Published
- May 18, 2026
- Updated
- May 20, 2026
- Reserved
- Jan 9, 2026
Description
Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Versions prior to 3.5.7 contain a path traversal vulnerability in the importer which allows overwriting arbitrary files on disk. The OneNote converter does not sanitize the names of embedded files before writing them to disk. As a result, it's possible for an attacker to create a malicious .one file that includes file names containing ../../, that are then interpreted as part of the target path when extracting attachments from the .one file. This issue has been patched in version 3.5.7.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.2 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H | GitHub_M |
Weaknesses
- CWE-24 Path Traversal: '../filedir'
Affected Products
| Product | Versions |
|---|---|
joplinlaurent22 |
|
References
- https://github.com/laurent22/joplin/security/advisories/GHSA-gcmj-c9gg-9vh6
- https://github.com/laurent22/joplin/pull/13736
- https://github.com/laurent22/joplin/commit/791668455e1aae50501ff57ea4783b3fba9d377c
- https://github.com/laurent22/joplin/blob/af5108d70233b1db9410346958c1587cf7c1b16d/packages/onenote-converter/renderer/src/page/embedded_file.rs#L13-L16
- https://github.com/laurent22/joplin/releases/tag/v3.5.7
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