Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Joplinapp | Joplin | < 3.5.7 |
| Msiemens | One2Html | <= 1.3.0 |
Related Weaknesses (CWE)
References
- https://github.com/laurent22/joplin/blob/af5108d70233b1db9410346958c1587cf7c1b16Product
- https://github.com/laurent22/joplin/commit/791668455e1aae50501ff57ea4783b3fba9d3Patch
- https://github.com/laurent22/joplin/pull/13736Issue Tracking
- https://github.com/laurent22/joplin/releases/tag/v3.5.7PatchProduct
- https://github.com/laurent22/joplin/security/advisories/GHSA-gcmj-c9gg-9vh6Vendor Advisory
- https://github.com/laurent22/joplin/security/advisories/GHSA-gcmj-c9gg-9vh6Vendor Advisory
FAQ
What is CVE-2026-22810?
CVE-2026-22810 is a vulnerability with a CVSS score of 8.2 (HIGH). 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 ov...
How severe is CVE-2026-22810?
CVE-2026-22810 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-22810?
Check the references section above for vendor advisories and patch information. Affected products include: Joplinapp Joplin, Msiemens One2Html.