RHSA-2025:23530HighCVSS 7.6

Red Hat Security Advisory: python39:3.9 security update

Published
December 18, 2025
Last Modified
August 27, 2026

🔗 CVE IDs covered (12)

CVE-2025-6069 →CVE-2025-6075 →CVE-2024-9287 →CVE-2025-0938 →CVE-2025-4517 →CVE-2025-8291 →CVE-2024-5642 →CVE-2024-11168 →CVE-2025-4138 →CVE-2025-4330 →CVE-2025-4435 →CVE-2025-4516 →

📋 Description

CVE-2024-5642 — python: Invalid value for OpenSSL API may cause Buffer over-read when NPN is used CVE-2024-9287 — python: Virtual environment (venv) activation scripts don't quote paths CVE-2024-11168 — python: Improper validation of IPv6 and IPvFuture addresses CVE-2025-0938 — python: cpython: URL parser allowed square brackets in domain names CVE-2025-4138 — cpython: python: Bypassing extraction filter to create symlinks to arbitrary targets outside extraction directory CVE-2025-4330 — cpython: python: Extraction filter bypass for linking outside extraction directory CVE-2025-4435 — cpython: Tarfile extracts filtered members when errorlevel=0 CVE-2025-4516 — cpython: python: CPython DecodeError Handling Vulnerability CVE-2025-4517 — python: cpython: Arbitrary writes via tarfile realpath overflow CVE-2025-6069 — cpython: Python HTMLParser quadratic complexity CVE-2025-6075 — python: Quadratic complexity in os.path.expandvars() with user-controlled template CVE-2025-8291 — cpython: python: Python zipfile End of Central Directory (EOCD) Locator record offset not checked

🎯 Affected products200

  • Red Hat Enterprise Linux AppStream (v. 8)
  • Red Hat Enterprise Linux CRB (v. 8)
  • Cython-0:0.29.21-5.module+el8.9.0+19644+d68f775d.src (python39-devel:3.9) as a component of Red Hat Enterprise Linux CRB (v. 8)
  • Cython-debugsource-0:0.29.21-5.module+el8.9.0+19644+d68f775d.aarch64 (python39-devel:3.9) as a component of Red Hat Enterprise Linux CRB (v. 8)
  • Cython-debugsource-0:0.29.21-5.module+el8.9.0+19644+d68f775d.ppc64le (python39-devel:3.9) as a component of Red Hat Enterprise Linux CRB (v. 8)
  • Cython-debugsource-0:0.29.21-5.module+el8.9.0+19644+d68f775d.s390x (python39-devel:3.9) as a component of Red Hat Enterprise Linux CRB (v. 8)
  • Cython-debugsource-0:0.29.21-5.module+el8.9.0+19644+d68f775d.x86_64 (python39-devel:3.9) as a component of Red Hat Enterprise Linux CRB (v. 8)
  • PyYAML-0:5.4.1-1.module+el8.9.0+19644+d68f775d.src (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • PyYAML-debugsource-0:5.4.1-1.module+el8.9.0+19644+d68f775d.aarch64 (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • PyYAML-debugsource-0:5.4.1-1.module+el8.9.0+19644+d68f775d.ppc64le (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • PyYAML-debugsource-0:5.4.1-1.module+el8.9.0+19644+d68f775d.s390x (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • PyYAML-debugsource-0:5.4.1-1.module+el8.9.0+19644+d68f775d.x86_64 (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mod_wsgi-0:4.7.1-7.module+el8.10.0+23075+0aa18782.1.src (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • numpy-0:1.19.4-3.module+el8.9.0+19644+d68f775d.src (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • numpy-debugsource-0:1.19.4-3.module+el8.9.0+19644+d68f775d.aarch64 (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • numpy-debugsource-0:1.19.4-3.module+el8.9.0+19644+d68f775d.ppc64le (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • numpy-debugsource-0:1.19.4-3.module+el8.9.0+19644+d68f775d.s390x (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • numpy-debugsource-0:1.19.4-3.module+el8.9.0+19644+d68f775d.x86_64 (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • pybind11-0:2.7.1-1.module+el8.9.0+19644+d68f775d.src (python39-devel:3.9) as a component of Red Hat Enterprise Linux CRB (v. 8)
  • pytest-0:6.0.2-2.module+el8.9.0+19644+d68f775d.src (python39-devel:3.9) as a component of Red Hat Enterprise Linux CRB (v. 8)
  • python-PyMySQL-0:0.10.1-2.module+el8.9.0+19644+d68f775d.src (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • python-attrs-0:20.3.0-2.module+el8.9.0+19644+d68f775d.src (python39-devel:3.9) as a component of Red Hat Enterprise Linux CRB (v. 8)
  • python-cffi-0:1.14.3-2.module+el8.9.0+19644+d68f775d.src (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • python-cffi-debugsource-0:1.14.3-2.module+el8.9.0+19644+d68f775d.aarch64 (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • python-cffi-debugsource-0:1.14.3-2.module+el8.9.0+19644+d68f775d.ppc64le (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • python-cffi-debugsource-0:1.14.3-2.module+el8.9.0+19644+d68f775d.s390x (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • python-cffi-debugsource-0:1.14.3-2.module+el8.9.0+19644+d68f775d.x86_64 (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • python-chardet-0:3.0.4-19.module+el8.9.0+19644+d68f775d.src (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • python-cryptography-0:3.3.1-3.module+el8.10.0+21271+eccd1d86.src (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • python-cryptography-debugsource-0:3.3.1-3.module+el8.10.0+21271+eccd1d86.aarch64 (python39:3.9) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • +170 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Workaround: Red Hat recommends upgrading to a fixed release of Python as soon as one is available. This vulnerability can be mitigated by rejecting links inside tarfiles that use relative references to the parent directory. The upstream advisory provides this example code: ''' # Avoid insecure segments in link names. for member in tar.getmembers(): if not member.islnk(): continue if os.pardir in os.path.split(member.linkname): raise OSError("Tarfile with insecure segment ('..') in linkname") # Now safe to extract members with the data filter. tar.extractall(filter="data") ''' Workaround: No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.

🔗 References (16)