CVE-2020-26137
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2020-26137
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-26137.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2020-26137
- Aliases
- Downstream
- Related
- Published
- 2020-09-30T18:15:26.773Z
- Modified
- 2025-11-14T10:59:06.669346Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
-
- https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html
- https://bugs.python.org/issue39603
- https://github.com/urllib3/urllib3/commit/1dd69c5c5982fae7c87a620d487c2ebf7a6b436b
- https://github.com/urllib3/urllib3/pull/1800
- https://lists.debian.org/debian-lts-announce/2021/06/msg00015.html
- https://usn.ubuntu.com/4570-1/
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
Affected packages
Git / github.com/urllib3/urllib3
Affected ranges
- Type
- GIT
- Repo
- https://github.com/urllib3/urllib3
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed