Description

The urllib.parse.urlsplit() and urlparse() functions improperly validated bracketed hosts (`[]`), allowing hosts that weren't IPv6 or IPvFuture. This behavior was not conformant to RFC 3986 and potentially enabled SSRF if a URL is processed by more than one URL parser.

Classification

CVE ID: CVE-2024-11168

CVSS Base Severity: MEDIUM

CVSS Base Score: 6.3

Affected Products

Vendor: Python Software Foundation

Product: CPython

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.06% (probability of being exploited)

EPSS Percentile: 27.81% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://github.com/python/cpython/commit/29f348e232e82938ba2165843c448c2b291504c5
https://github.com/python/cpython/pull/103849
https://github.com/python/cpython/issues/103848
https://mail.python.org/archives/list/[email protected]/thread/XPWB6XVZ5G5KGEI63M4AWLIEUF5BPH4T/
https://github.com/python/cpython/commit/b2171a2fd41416cf68afd67460578631d755a550
https://github.com/python/cpython/commit/634ded45545ce8cbd6fd5d49785613dd7fa9b89e
https://github.com/python/cpython/commit/ddca2953191c67a12b1f19d6bca41016c6ae7132

Timeline