CVE-2019-11236

MEDIUM

urllib3 <1.24.1 - CRLF Injection

Title source: llm

Description

In the urllib3 library through 1.24.1 for Python, CRLF injection is possible if the attacker controls the request parameter.

References (15)

[Mailing List] http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00039.html

[Mailing List] http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00041.html

[Vendor Advisory] https://access.redhat.com/errata/RHSA-2019:2272

[Vendor Advisory] https://access.redhat.com/errata/RHSA-2019:3335

[Vendor Advisory] https://access.redhat.com/errata/RHSA-2019:3590

[Exploit, Issue Tracking, Third Party Advisory] https://github.com/urllib3/urllib3/issues/1553

[Mailing List] https://lists.debian.org/debian-lts-announce/2019/06/msg00016.html

[Mailing List] https://lists.debian.org/debian-lts-announce/2021/06/msg00015.html

[Mailing List] https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html

[Vendor Advisory] https://usn.ubuntu.com/3990-1/

[Vendor Advisory] https://usn.ubuntu.com/3990-2/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKGPJLVLVYCL4L4B4G5TIOTVK4BKPG72/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R62XGEYPUTXMRHGX5I37EBCGQ5COHGKR/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TBI45HO533KYHNB5YRO43TBYKA3E3VRL/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XOSA2NT4DUQDBEIWE6O7KKD24XND7TE2/

Scores

CVSS v3 6.1

EPSS 0.0062

EPSS Percentile 69.8%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Classification

CWE

CWE-93

Status published

Affected Products (2)

python/urllib3 < 1.24.2

pypi/urllib3 < 1.24.3PyPI

Timeline

Published Apr 15, 2019

Tracked Since Feb 18, 2026