Joplin: Path traversal in OneNote importer allows overwriting arbitrary files

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-22810 · CVE overview and exploitation status

EUVD-2026-30806

GHSA-gcmj-c9gg-9vh6

cve-program · CVE-2026-22810

• 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

euvd · EUVD-2026-30806

• 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

nvd · CVE-2026-22810

• https://github.com/laurent22/joplin/blob/af5108d70233b1db9410346958c1587cf7c1b16d/packages/onenote-converter/renderer/src/page/embedded_file.rs#L13-L16
• https://github.com/laurent22/joplin/commit/791668455e1aae50501ff57ea4783b3fba9d377c
• https://github.com/laurent22/joplin/pull/13736
• https://github.com/laurent22/joplin/releases/tag/v3.5.7
• https://github.com/laurent22/joplin/security/advisories/GHSA-gcmj-c9gg-9vh6

osv · GHSA-gcmj-c9gg-9vh6

• https://github.com/laurent22/joplin/security/advisories/GHSA-gcmj-c9gg-9vh6
• https://nvd.nist.gov/vuln/detail/CVE-2026-22810
• https://github.com/laurent22/joplin/pull/13736
• https://github.com/laurent22/joplin/commit/791668455e1aae50501ff57ea4783b3fba9d377c
• https://github.com/laurent22/joplin
• 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

• 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 O… · Advisory content revised · 15 Nov 2026