CVE-2026-39847

Emmett has a path traversal in internal assets handler

State
Published
Severity
9.1 Critical
Published
Apr 7, 2026
Updated
Apr 8, 2026
Reserved
Apr 7, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.19.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HGitHub_M

Weaknesses

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

Affected Products

ProductVersions
emmettemmett-framework
  • >= 2.5.0, < 2.8.1Affected

References

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