High severity · published Oct 4, 2023
CVE-2023-43804
urllib3 is a user-friendly HTTP client library for Python
8.1
CVSS
1.4%
EPSS
No
On KEV
Description
urllib3 is a user-friendly HTTP client library for Python. urllib3 doesn't treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `Cookie` header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly. This issue has been patched in urllib3 version 1.26.17 or 2.0.5.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0 · source: NVD
FE
Fedora · Fedoraproject
37; 38; 39 · source: NVD
UR
Urllib3 · Python
before 1.26.17; 2.0.0 before 2.0.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-43804
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-43804
Patch
https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafb
Patch
https://github.com/urllib3/urllib3/commit/644124ecd0b6e417c527191f866daa05a5a2056d
Patch
https://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9f
Mailing List
https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5F5CUBAN5XMEBVBZPHFITBLMJV5FIJJ5/
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I3PR7C6RJ6JUBQKIJ644DMIJSUP36VDY/
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