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CVE-2020-7658
meinheld prior to 1.0.2 is vulnerable to HTTP Request Smuggling. HTTP pipelining issues and request smuggling attacks might be possible…
Medium6.1EPSS 0.69%
- Published
- Updated
- Reserved
- Assigned by
- snyk
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.69% · top 47% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.
Weakness
- HTTP Request Smuggling
- CWE-444 (opens in a new tab)All about CWE-444 and its CVEs
Affected products
meinheld
- affected All versions prior to 1.0.2
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPImeinheldGHSA-63h2-9cc8-fc7m (opens in a new tab)
References (2)
- https://github.com/mopemope/meinheld/blob/master/CHANGES.rst%2C (opens in a new tab)x_refsource_MISCx_transferred
- https://snyk.io/vuln/SNYK-PYTHON-MEINHELD-569140 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-63h2-9cc8-fc7m (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-7658)Record last updated .