Medium USN-7280-1 1 CVE

python3.10, python3.12, python3.8 vulnerability

Published Feb 20, 2025 · Updated Apr 27, 2026

Ecosystem: Ubuntu

Summary

It was discovered that Python incorrectly handled parsing domain names that
included square brackets. A remote attacker could possibly use this issue
to perform a Server-Side Request Forgery (SSRF) attack.

Fixed packages 3

Release	Package	Fixed in
Ubuntu · 20.04 LTS 20.04:LTS	python3.8	3.8.10-0ubuntu1~20.04.15
Ubuntu · 22.04 LTS 22.04:LTS	python3.10	3.10.12-1~22.04.9
Ubuntu · 24.04 LTS 24.04:LTS	python3.12	3.12.3-1ubuntu0.5

Vulnerabilities 1

Medium 6.3

CVE-2025-0938

URL parser allowed square brackets in domain names

The Python standard library functions `urllib.parse.urlsplit` and `urlparse` accepted domain names that included square brackets which isn't valid according to RFC 3986. Square brackets are only meant to be used as delimiters for specifying IPv6 and IPvFuture…

Python Software Foundation CPython python3.4 python3.5 Debian Ubuntu Azure Linux Alpine Wolfi

Jan 31, 2025

References

report
https://ubuntu.com/security/CVE-2025-0938