HTTP Response Splitting The advisory has been revoked - it doesn't affect any version of package rh-mongodb36-python-urllib3.src (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-RHEL10-RHMONGODB36PYTHONURLLIB3SRC-15360190
- published27 Feb 2026
- disclosed10 Feb 2020
Introduced: 10 Feb 2020
CVE-2020-26137 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rh-mongodb36-python-urllib3.src package and not the rh-mongodb36-python-urllib3.src package as distributed by RHEL.
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://bugzilla.redhat.com/show_bug.cgi?id=1883632
- https://access.redhat.com/security/cve/CVE-2020-26137
- 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://lists.debian.org/debian-lts-announce/2023/10/msg00012.html
- https://usn.ubuntu.com/4570-1/
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html