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python-twisted: HTTP request smuggling when presented with a Content-Length and a chunked Transfer-Encoding header

🗓️ 23 Apr 2020 14:14:35Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 3 Views

Flaw in Twisted Web misprocesses Content-Length and Transfer-Encoding, enabling HTTP smuggling.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
FreeBSD		py-twisted -- multiple vulnerabilities
1 Mar 201900:00
–freebsd
Tenable Nessus		Amazon Linux 2 : python-twisted-web (ALAS-2020-1428)
21 May 202000:00
–nessus
Tenable Nessus		CentOS 7 : python-twisted-web (RHSA-2020:1561)
1 May 202000:00
–nessus
Tenable Nessus		Debian DLA-2145-2 : twisted security update
18 Mar 202000:00
–nessus
Tenable Nessus		Debian DLA-2927-1 : twisted - LTS security update
19 Feb 202200:00
–nessus
Tenable Nessus		Fedora 31 : python-twisted (2020-16dc0da400)
26 Mar 202000:00
–nessus
Tenable Nessus		FreeBSD : py-twisted -- multiple vulnerabilities (9fbaefb3-837e-11ea-b5b4-641c67a117d8) (Ping Flood) (Reset Flood) (Settings Flood)
22 Apr 202000:00
–nessus
Tenable Nessus		GLSA-202007-24 : Twisted: Access restriction bypasses
27 Jul 202000:00
–nessus
Tenable Nessus		MiracleLinux 7 : python-twisted-web-12.1.0-7.el7 (AXSA:2020-025:01)
20 Jan 202600:00
–nessus
Tenable Nessus		NewStart CGSL CORE 5.04 / MAIN 5.04 : python-twisted-web Multiple Vulnerabilities (NS-SA-2020-0078)
11 Dec 202000:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7ppc64python-twisted-web0:12.1.0-7.el7_8python-twisted-web-0:12.1.0-7.el7_8.ppc64.rpm
Red Hat Enterprise Linux7ppc64lepython-twisted-web0:12.1.0-7.el7_8python-twisted-web-0:12.1.0-7.el7_8.ppc64le.rpm
Red Hat Enterprise Linux7s390xpython-twisted-web0:12.1.0-7.el7_8python-twisted-web-0:12.1.0-7.el7_8.s390x.rpm
Red Hat Enterprise Linux7x86_64python-twisted-web0:12.1.0-7.el7_8python-twisted-web-0:12.1.0-7.el7_8.x86_64.rpm

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26 Jun 2026 22:49Current
7.3High risk
Vulners AI Score7.3
CVSS 27.5
CVSS 3.19.8
EPSS0.03298
CWE-444
python twisted webrequest smugglingcontent lengthtransfer encodingsecurity flawremote attackerinfrastructure impact
3