{"id":"CVE-2026-22810","aliases":["GHSA-gcmj-c9gg-9vh6"],"url":"https://o3.security/vulnerability/CVE-2026-22810","summary":"Joplin: Path traversal in OneNote importer allows overwriting arbitrary files","details":"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.","published":"2026-05-18T20:23:57.607Z","modified":"2026-08-12T03:51:15.668661545Z","cvss":{"score":8.2,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H"},"epss":{"score":0.00206,"percentile":0.10806,"asOf":"2026-08-10"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@joplin/onenote-converter","fixedVersion":"3.5.7"}],"fix":{"url":"https://github.com/laurent22/joplin/commit/791668455e1aae50501ff57ea4783b3fba9d377c","label":"laurent22/joplin@7916684"},"references":[{"type":"WEB","url":"https://github.com/laurent22/joplin/blob/af5108d70233b1db9410346958c1587cf7c1b16d/packages/onenote-converter/renderer/src/page/embedded_file.rs#L13-L16"},{"type":"WEB","url":"https://github.com/laurent22/joplin/releases/tag/v3.5.7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22810.json"},{"type":"ADVISORY","url":"https://github.com/laurent22/joplin/security/advisories/GHSA-gcmj-c9gg-9vh6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22810"},{"type":"FIX","url":"https://github.com/laurent22/joplin/commit/791668455e1aae50501ff57ea4783b3fba9d377c"},{"type":"FIX","url":"https://github.com/laurent22/joplin/pull/13736"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:15.668661545Z"}}