CVE-2026-39847

CRITICAL

Emmett 2.5.0-2.8.0 Internal Assets Handler - Path Traversal

Title source: manual
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 9.1
EPSS 0.0050
EPSS Percentile 38.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-22
Status published
Products (3)
emmett/emmett 2.5.0 - 2.8.1
emmett-framework/emmett >= 2.5.0, < 2.8.1
pypi/emmett 2.5.0 - 2.8.1PyPI
Published Apr 07, 2026
Tracked Since Apr 08, 2026