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python: Improper validation of IPv6 and IPvFuture addresses

🗓️ 18 Dec 2025 01:35:54Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 9 Views

Python URL parsers improperly validate bracketed hosts, allowing IPv six/IPv future and SSRF risk.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.9aarch64cython-debugsource0.29.21-5.module+el8.9.0+19644+d68f775dcython-debugsource-0.29.21-5.module+el8.9.0+19644+d68f775d.aarch64.rpm
Red Hat Enterprise Linux8.9ppc64lecython-debugsource0.29.21-5.module+el8.9.0+19644+d68f775dcython-debugsource-0.29.21-5.module+el8.9.0+19644+d68f775d.ppc64le.rpm
Red Hat Enterprise Linux8.9s390xcython-debugsource0.29.21-5.module+el8.9.0+19644+d68f775dcython-debugsource-0.29.21-5.module+el8.9.0+19644+d68f775d.s390x.rpm
Red Hat Enterprise Linux8.9x86_64cython-debugsource0.29.21-5.module+el8.9.0+19644+d68f775dcython-debugsource-0.29.21-5.module+el8.9.0+19644+d68f775d.x86_64.rpm
Red Hat Enterprise Linux8.9aarch64numpy-debugsource1.19.4-3.module+el8.9.0+19644+d68f775dnumpy-debugsource-1.19.4-3.module+el8.9.0+19644+d68f775d.aarch64.rpm
Red Hat Enterprise Linux8.9ppc64lenumpy-debugsource1.19.4-3.module+el8.9.0+19644+d68f775dnumpy-debugsource-1.19.4-3.module+el8.9.0+19644+d68f775d.ppc64le.rpm
Red Hat Enterprise Linux8.9s390xnumpy-debugsource1.19.4-3.module+el8.9.0+19644+d68f775dnumpy-debugsource-1.19.4-3.module+el8.9.0+19644+d68f775d.s390x.rpm
Red Hat Enterprise Linux8.9x86_64numpy-debugsource1.19.4-3.module+el8.9.0+19644+d68f775dnumpy-debugsource-1.19.4-3.module+el8.9.0+19644+d68f775d.x86_64.rpm
Red Hat Enterprise Linux8.9aarch64python-cffi-debugsource1.14.3-2.module+el8.9.0+19644+d68f775dpython-cffi-debugsource-1.14.3-2.module+el8.9.0+19644+d68f775d.aarch64.rpm
Red Hat Enterprise Linux8.9ppc64lepython-cffi-debugsource1.14.3-2.module+el8.9.0+19644+d68f775dpython-cffi-debugsource-1.14.3-2.module+el8.9.0+19644+d68f775d.ppc64le.rpm
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25 Aug 2026 09:41Current
7.3High risk
Vulners AI Score7.3
CVSS 3.13.7
CVSS 46.3
EPSS0.00656
SSVC
CWE-1287
bracketed hostsip version sixip futureweb address parsersserver side forgeryimproper validation
9