What’s Vulnerable › Vulnerabilities

CVE-2023-24329

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 20.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-02-17 · updated 2026-10-14
• Weakness: CWE-20

Description

An issue in the urllib.parse component of Python before 3.11.4 allows attackers to bypass blocklisting methods by supplying a URL that starts with blank characters.

Affected products

• Fedoraproject Fedora: 36, 37, 38
• Active IQ Unified Manager for VMware vSphere, Linux, and Microsoft Windows: all versions
• NetApp Management Services For Element Software: all versions
• NetApp Management Services For Netapp Hci: all versions
• NetApp ONTAP Select Deploy administration utility: all versions
• Python: before 3.7.17; from 3.8.0 before 3.8.17; from 3.9.0 before 3.9.17; from 3.10.0 before 3.10.12; from 3.11.0 before 3.11.4 — fixed in 3.10.12, 3.11.4, 3.7.17, 3.8.17, 3.9.17

How to fix

Upgrade to a fixed version: Python 3.10.12, 3.11.4, 3.7.17, 3.8.17. Check the vendor advisory for mitigations.

References

• https://github.com/python/cpython/issues/102153
• https://github.com/python/cpython/pull/99421
• https://lists.debian.org/debian-lts-announce/2023/09/msg00022.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6PEVICI7YNGGMSL3UCMWGE66QFLATH72/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DSL6NSOAXWBJJ67XPLSSC74MNKZF3BBO/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EM2XLZSTXG44TMFXF4E6VTGKR2MQCW3G/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F2NY75GFDZ5T6YPN44D3VMFT5SUVTOTG/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GR5US3BYILYJ4SKBV6YBNPRUBAL5P2CN/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H23OSKC6UG6IWOQAUPW74YUHWRWVXJP7/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JZTLGV2HYFF4AMYJL25VDIGAIHCU7UPA/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWC4WGXER5P6Q75RFGL7QUTPP3N5JR7T/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MZEHSXSCMA4WWQKXT6QV7AAR6SWNZ2VP/

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