What’s Vulnerable › Vulnerabilities
CVE-2026-39847: Emmett has a path traversal in internal assets handler
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-07 · updated 2026-07-24
- Weakness: CWE-22
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.
Affected products
- emmett-framework emmett: from 2.5.0 before 2.8.1 — fixed in 2.8.1
How to fix
Upgrade to a fixed version: emmett-framework emmett 2.8.1. Check the vendor advisory for mitigations.
References
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