{"id":"CVE-2025-6278","aliases":["GHSA-8jf4-fcjr-68c2","PYSEC-2025-67"],"url":"https://o3.security/vulnerability/CVE-2025-6278","summary":"Upsonic server.py os.path.join path traversal","details":"A vulnerability classified as critical was found in Upsonic up to 0.55.6. This vulnerability affects the function os.path.join of the file markdown/server.py. The manipulation of the argument file.filename leads to path traversal. The exploit has been disclosed to the public and may be used.","published":"2025-06-19T20:31:05.135Z","modified":"2026-08-07T11:49:48.112519274Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"upsonic","fixedVersion":"0.56.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6278.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-6278"},{"type":"ADVISORY","url":"https://vuldb.com/?id.313282"},{"type":"ADVISORY","url":"https://vuldb.com/?submit.593096"},{"type":"REPORT","url":"https://github.com/Upsonic/Upsonic/issues/356"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.313282"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:49:48.112519274Z"}}