VULNERABILITY INTELLIGENCE
CVE-2023-43804
CVSS score5.9 MEDIUM
EPSS probability1.36%
CISA KEVNot currently listed
Published2023-10-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
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.
Weakness classification
- security-advisories@github.com: CWE-200
- nvd@nist.gov: NVD-CWE-noinfo
Primary references
- security-advisories@github.com — Patch
- security-advisories@github.com — Patch
- security-advisories@github.com — Patch, Vendor Advisory
- security-advisories@github.com — Mailing List, Third Party Advisory
- security-advisories@github.com — Mailing List, Third Party Advisory
- security-advisories@github.com — Mailing List, Third Party Advisory
- security-advisories@github.com — Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch
- af854a3a-2127-422b-91ae-364da2661108 — Patch
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108