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CVE-2020-26137

Good to know:

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Date: September 28, 2020

urllib3 before 1.25.9 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 putrequest(). NOTE: this is similar to CVE-2020-26116.

Language: Python

Severity Score

Related Resources (15)

https://usn.ubuntu.com/4570-1
https://github.com/urllib3/urllib3/pull/1800
https://access.redhat.com/security/cve/CVE-2020-26137
https://bugs.python.org/issue39603
https://usn.ubuntu.com/4570-1/
https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html
https://github.com/advisories/GHSA-wqvq-5m8c-6g24
https://github.com/urllib3/urllib3
https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2020-148.yaml
https://nvd.nist.gov/vuln/detail/CVE-2020-26137
https://www.oracle.com/security-alerts/cpujul2022.html
https://lists.debian.org/debian-lts-announce/2021/06/msg00015.html
https://www.oracle.com/security-alerts/cpuoct2021.html
https://github.com/urllib3/urllib3/commit/1dd69c5c5982fae7c87a620d487c2ebf7a6b436b
https://www.mend.io/vulnerability-database/CVE-2020-26137

Severity Score

Weakness Type (CWE)

Injection

CWE-74

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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