Improper validation of IPv6 and IPvFuture addresses
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.3epss 0.7%
exploitation probability
0.7%top 50% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/AU:N
Affected products
Python Software Foundation · CPythonReferences
https://github.com/python/cpython/commit/29f348e232e82938ba2165843c448c2b291504c5https://github.com/python/cpython/commit/634ded45545ce8cbd6fd5d49785613dd7fa9b89ehttps://github.com/python/cpython/commit/b2171a2fd41416cf68afd67460578631d755a550https://github.com/python/cpython/commit/ddca2953191c67a12b1f19d6bca41016c6ae7132https://github.com/python/cpython/issues/103848https://github.com/python/cpython/pull/103849https://lists.debian.org/debian-lts-announce/2024/12/msg00000.htmlhttps://mail.python.org/archives/list/security-announce@python.org/thread/XPWB6XVZ5G5KGEI63M4AWLIEUF5BPH4T/https://security.netapp.com/advisory/ntap-20250411-0004/