Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXdxdnEtNW04Yy02ZzI0

CRLF injection in urllib3

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.

Permalink: https://github.com/advisories/GHSA-wqvq-5m8c-6g24
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXdxdnEtNW04Yy02ZzI0
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: almost 3 years ago
Updated: 6 months ago

CVSS Score: 6.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Identifiers: GHSA-wqvq-5m8c-6g24, CVE-2020-26137
References:

• https://nvd.nist.gov/vuln/detail/CVE-2020-26137
• https://github.com/urllib3/urllib3/pull/1800
• https://github.com/urllib3/urllib3/commit/1dd69c5c5982fae7c87a620d487c2ebf7a6b436b
• https://bugs.python.org/issue39603
• https://lists.debian.org/debian-lts-announce/2021/06/msg00015.html
• https://usn.ubuntu.com/4570-1/
• https://www.oracle.com/security-alerts/cpuoct2021.html
• https://www.oracle.com/security-alerts/cpujul2022.html
• https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html
• https://github.com/advisories/GHSA-wqvq-5m8c-6g24

Repository: https://github.com/urllib3/urllib3
Blast Radius: 36.6

Affected Packages