🛡️ CVE-2023-43804
🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-200 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity MEDIUM
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
CWE CWE-200
Public Exploit ✅ No
Source NVD
Published 2023-10-04
Updated 2026-06-15
Modified 2025-11-03

Affected Packages

Software From version Fixed in
debian-linux
fedora
urllib3 1.26.17

References

Similar Threats

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