meinheld prior to 1.0.2 is vulnerable to HTTP Request Smuggling. HTTP pipelining issues and request smuggling attacks might be possible due to incorrect Content-Length and Transfer encoding header par
meinheld prior to 1.0.2 is vulnerable to HTTP Request Smuggling. HTTP pipelining issues and request smuggling attacks might be possible due to incorrect Content-Length and Transfer encoding header parsing.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | meinheld | < 1.0.2 | 1.0.2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-7658
- https://github.com/mopemope/meinheld/issues/111
- https://github.com/mopemope/meinheld/commit/0cfa70b2cd3800f1e4beeaef5421b156d90f0e09
- https://github.com/mopemope/meinheld/commit/3bc3e7ccd534277af955c0c92981d0aa033929a7
- https://github.com/mopemope/meinheld/commit/4155876bfd3e8fc4adad4aaa59ec3f1cefa1d2d1
- https://github.com/mopemope/meinheld
- https://github.com/mopemope/meinheld/blob/master/CHANGES.rst
- https://github.com/pypa/advisory-database/tree/main/vulns/meinheld/PYSEC-2020-239.yaml
- https://snyk.io/vuln/SNYK-PYTHON-MEINHELD-569140
- https://github.com/mopemope/meinheld/blob/master/CHANGES.rst,
- https://github.com/advisories/GHSA-63h2-9cc8-fc7m
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-444- Platform
- Python (PyPI)
- Package
meinheld- Disclosed
- 22.05.2020
- Updated
- 11.10.2026 12:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-63h2-9cc8-fc7m - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2020-239 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: meinheld
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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