High 8.2Published May 18, 2026

CVE-2026-22810Joplin: Path traversal in OneNote importer allows overwriting arbitrary files

Updated under an hour ago (Oct 27, 2026, 3:40 PM ET)

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Every CVE for laurent22 joplin

Exploited in the last 30 days

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: 8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-24
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: May 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

laurent22 joplin laurent22:joplin (from the name)	before 3.5.7	CNA record
joplinapp joplin joplinapp:joplin	before 3.5.7	NVD
msiemens one2html msiemens:one2html	through 1.3.0	NVD

References

References

https://github.com/laurent22/joplin/security/advisories/GHSA-gcmj-c9gg-9vh6	x-refsource-confirm, vendor-advisory
https://github.com/laurent22/joplin/pull/13736	x-refsource-misc, issue-tracking
https://github.com/laurent22/joplin/commit/791668455e1aae50501ff57ea4783b3fba9d377c	x-refsource-misc, patch
https://github.com/laurent22/joplin/blob/af5108d70233b1db9410346958c1587cf7c1b16d/packages/onenote-converter/renderer/src/page/embedded_file.rs#L13-L16	x-refsource-misc, product
https://github.com/laurent22/joplin/releases/tag/v3.5.7	x-refsource-misc, patch, product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.