{"id":"EUVD-2026-30806","revision":null,"records":[{"revision":"d5c59a4ea60440e390ddb2f6d37a232a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-22810","aliases":[],"title":"Joplin: Path traversal in OneNote importer allows overwriting arbitrary files","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.","state":0,"publishedAt":"2026-05-18T20:23:57.607+00:00","modifiedAt":"2026-05-20T03:55:23.355+00:00","affected":[{"ecosystem":"Vendor product","name":"joplin","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"laurent22\",\n                    \"product\": \"joplin\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 3.5.7\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","score":8.2,"severity":"HIGH"}],"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"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-22810","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-22810","identifiers":["CVE-2026-22810"]},"retained":false,"historicalAffected":[]},{"revision":"65e90d6491454b929faaceb5f8ae01dd","observedAt":"2026-11-15T07:35:30.491+00:00","statement":{"source":"euvd","id":"EUVD-2026-30806","aliases":["CVE-2026-22810","GHSA-gcmj-c9gg-9vh6"],"title":"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…","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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","score":8.2,"severity":null}],"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"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-30806","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"May 18, 2026, 8:23:57 PM","dateUpdated":"May 20, 2026, 3:55:23 AM"},"relatedAdvisories":[{"id":"WID-SEC-W-2026-1569","title":"Joplin: Mehrere Schwachstellen","vulnerabilityIds":["CVE-2025-57798","CVE-2026-22810","CVE-2026-34600"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. 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Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-22810","identifiers":["CVE-2026-22810"]},"retained":false,"historicalAffected":[]},{"revision":"e8fed4f806d64a96b14e73e20952bd60","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-gcmj-c9gg-9vh6","aliases":["CVE-2026-22810"],"title":"@joplin/onenote-converter: Path traversal in OneNote importer allows overwriting arbitrary files","description":"### Summary\nA path traversal vulnerability in the OneNote importer allows overwriting arbitrary files on disk.\n\n### Details\nThe 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.\n\nOne affected location is `embedded_file.rs`, which generates a file name from a string previously parsed from the `.one` file,\nhttps://github.com/laurent22/joplin/blob/af5108d70233b1db9410346958c1587cf7c1b16d/packages/onenote-converter/renderer/src/page/embedded_file.rs#L13-L16\n\nAbove, [`determine_filename`](https://github.com/laurent22/joplin/blob/af5108d70233b1db9410346958c1587cf7c1b16d/packages/onenote-converter/renderer/src/page/embedded_file.rs#L56-L64) passes through the provided file name.\n\n[Similar logic](https://github.com/laurent22/joplin/blob/4d7fa5972fe2986eae14cbf3a2801835cbe1384e/packages/onenote-converter/src/page/embedded_file.rs#L14) has been present since 4d7fa5972fe2986eae14cbf3a2801835cbe1384e (Joplin 3.2.2), when the OneNote importer was first introduced.\n\n### PoC\n\n[Screencast from 2025-11-20 13-50-21.webm](https://github.com/user-attachments/assets/a9d6cc64-ec11-4f33-9f92-32efe0eaab23)\n\n\n1. Import [poc_v2.zip](https://github.com/user-attachments/files/23664109/poc_v2.zip).\n2. Open the application's profile directory, then open `log.txt`.\n3. Observe that `log.txt` has been overwritten non-log-file content (a WAV file).\n\nTested on Fedora Linux 43 with Joplin 3.4.12 (prod, linux) and Joplin 3.5.6 (dev, linux).\n\n**Note**: The PoC ZIP file overwrites Joplin's `log.txt`. It is also possible to craft a file that overwrites more sensitive system files (e.g. `.bashrc` on Linux).\n\n### Impact\nThis is a path traversal vulnerability that impacts **all versions of Joplin (<= v3.5.6) that include a OneNote importer**. Importing a crafted OneNote export file allows an attacker to overwrite arbitrary files, potentially leading to remote code execution.\n\n### Patched in\n\n- **Joplin**: https://github.com/laurent22/joplin/commit/791668455e1aae50501ff57ea4783b3fba9d377c\n- **one2html**: https://github.com/msiemens/one2html/commit/948d65cdca5bb35d776b8b235ec05ff15249fd41","state":0,"publishedAt":"2026-05-15T16:27:11+00:00","modifiedAt":"2026-09-10T03:51:05.6899919+00:00","affected":[{"ecosystem":"npm","name":"@joplin/onenote-converter","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"3.5.7"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["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"],"sourceUrl":"https://github.com/advisories/GHSA-gcmj-c9gg-9vh6","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-gcmj-c9gg-9vh6","identifiers":["GHSA-gcmj-c9gg-9vh6","CVE-2026-22810"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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