{"id":"CVE-2026-39847","aliases":["GHSA-pr46-2v3c-5356","PYSEC-2026-59"],"url":"https://o3.security/vulnerability/CVE-2026-39847","summary":"Emmett has a path traversal in internal assets handler","details":"Emmett is a full-stack Python web framework designed with simplicity. From 2.5.0 to before 2.8.1, the RSGI static handler for Emmett's internal assets (/__emmett__ paths) is vulnerable to path traversal attacks. An attacker can use ../ sequences (eg /__emmett__/../rsgi/handlers.py) to read arbitrary files outside the assets directory. This vulnerability is fixed in 2.8.1.","published":"2026-04-07T21:37:54.760Z","modified":"2026-08-12T03:51:25.465151672Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},"epss":{"score":0.00495,"percentile":0.40206,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"emmett","fixedVersion":"2.8.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39847.json"},{"type":"ADVISORY","url":"https://github.com/emmett-framework/emmett/security/advisories/GHSA-pr46-2v3c-5356"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39847"},{"type":"PACKAGE","url":"https://github.com/emmett-framework/emmett"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/emmett/PYSEC-2026-59.yaml"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:25.465151672Z"}}