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CVE-2020-26116

nvd nist
Published: Sep 27, 2020Modified: Jun 17, 2026

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7.2
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Exploitability: 3.9 / Impact: 2.7
Source: NVD

Description

http.client in Python 3.x before 3.5.10, 3.6.x before 3.6.12, 3.7.x before 3.7.9, and 3.8.x before 3.8.5 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of HTTPConnection.request.

Affected (16)

Products: Python: Python · Fedoraproject: Fedora · Canonical: Ubuntu Linux · +4 more
Show all products
Python: Python · Fedoraproject: Fedora · Canonical: Ubuntu Linux · Netapp: Hci Storage Node, Solidfire · Debian: Debian Linux · Oracle: Zfs Storage Appliance Kit · Opensuse: Leap
Python
1 product
Python
Fedoraproject
1 product
Fedora
Canonical
1 product
Ubuntu Linux
Netapp
2 products
Hci Storage Node
Solidfire
Debian
1 product
Debian Linux
Oracle
1 product
Zfs Storage Appliance Kit
Opensuse
1 product
Leap
Configuration A
4 vulnerable
Vulnerable SoftwareAffected Versions
Python
Python
From 3.0.0 to 3.5.10
Python
From 3.6.0 to 3.6.12
Python
From 3.7.0 to 3.7.9
Python
From 3.8.0 to 3.8.5
Configuration B
3 vulnerable
Vulnerable SoftwareAffected Versions
Fedoraproject
Fedora
Version 31
Fedora
Version 32
Fedora
Version 33
Configuration C
4 vulnerable
Vulnerable SoftwareAffected Versions
Canonical
Ubuntu Linux
Version 12.04
Ubuntu Linux
Version 14.04
Ubuntu Linux
Version 16.04
Ubuntu Linux
Version 18.04
Configuration D
2 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Hci Storage Node
All versions
Solidfire
All versions
Running on/withPlatform Versions
Netapp
Hci Compute Node
All versions
Configuration E
1 vulnerable
Vulnerable SoftwareAffected Versions
Debian Linux
Version 9.0
Configuration F
1 vulnerable
Vulnerable SoftwareAffected Versions
Zfs Storage Appliance Kit
Version 8.8
Configuration G
1 vulnerable
Vulnerable SoftwareAffected Versions
Leap
Version 15.1

Related CWEs

CWE-74
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

References (28)

Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
ExploitIssue TrackingPatchVendor Advisory
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingPatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory

Timeline

No history available yet.