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Description

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 Reserved 2026-04-07 | Published 2026-04-07 | Updated 2026-04-08 | Assigner GitHub_M




CRITICAL: 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Problem types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

>= 2.5.0, < 2.8.1
affected

References

github.com/...emmett/security/advisories/GHSA-pr46-2v3c-5356

cve.org (CVE-2026-39847)

nvd.nist.gov (CVE-2026-39847)

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