vulnerability
Red Hat: CVE-2021-3426: CVE-2021-3426 python: Information disclosure via pydoc (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 3 | (AV:A/AC:L/Au:S/C:P/I:N/A:N) | May 20, 2021 | Nov 10, 2021 | Aug 11, 2025 |
Severity
3
CVSS
(AV:A/AC:L/Au:S/C:P/I:N/A:N)
Published
May 20, 2021
Added
Nov 10, 2021
Modified
Aug 11, 2025
Description
There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information belonging to the other user that they would not normally be able to access. The highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9, Python versions before 3.9.3 and Python versions before 3.10.0a7.
Solutions
no-fix-redhat-rpm-packageredhat-upgrade-cython-debugsourceredhat-upgrade-numpy-debugsourceredhat-upgrade-platform-pythonredhat-upgrade-platform-python-debugredhat-upgrade-platform-python-develredhat-upgrade-python-cffi-debugsourceredhat-upgrade-python-cryptography-debugsourceredhat-upgrade-python-lxml-debugsourceredhat-upgrade-python-markupsafe-debugsourceredhat-upgrade-python-psutil-debugsourceredhat-upgrade-python-psycopg2-debugsourceredhat-upgrade-python3-debuginforedhat-upgrade-python3-debugsourceredhat-upgrade-python3-idleredhat-upgrade-python3-libsredhat-upgrade-python3-testredhat-upgrade-python3-tkinterredhat-upgrade-python38redhat-upgrade-python38-asn1cryptoredhat-upgrade-python38-atomicwritesredhat-upgrade-python38-attrsredhat-upgrade-python38-babelredhat-upgrade-python38-cffiredhat-upgrade-python38-cffi-debuginforedhat-upgrade-python38-chardetredhat-upgrade-python38-cryptographyredhat-upgrade-python38-cryptography-debuginforedhat-upgrade-python38-cythonredhat-upgrade-python38-cython-debuginforedhat-upgrade-python38-debugredhat-upgrade-python38-debuginforedhat-upgrade-python38-debugsourceredhat-upgrade-python38-develredhat-upgrade-python38-idleredhat-upgrade-python38-idnaredhat-upgrade-python38-jinja2redhat-upgrade-python38-libsredhat-upgrade-python38-lxmlredhat-upgrade-python38-lxml-debuginforedhat-upgrade-python38-markupsaferedhat-upgrade-python38-markupsafe-debuginforedhat-upgrade-python38-mod_wsgiredhat-upgrade-python38-more-itertoolsredhat-upgrade-python38-numpyredhat-upgrade-python38-numpy-debuginforedhat-upgrade-python38-numpy-docredhat-upgrade-python38-numpy-f2pyredhat-upgrade-python38-packagingredhat-upgrade-python38-pipredhat-upgrade-python38-pip-wheelredhat-upgrade-python38-pluggyredhat-upgrade-python38-plyredhat-upgrade-python38-psutilredhat-upgrade-python38-psutil-debuginforedhat-upgrade-python38-psycopg2redhat-upgrade-python38-psycopg2-debuginforedhat-upgrade-python38-psycopg2-docredhat-upgrade-python38-psycopg2-testsredhat-upgrade-python38-pyredhat-upgrade-python38-pycparserredhat-upgrade-python38-pymysqlredhat-upgrade-python38-pyparsingredhat-upgrade-python38-pysocksredhat-upgrade-python38-pytestredhat-upgrade-python38-pytzredhat-upgrade-python38-pyyamlredhat-upgrade-python38-pyyaml-debuginforedhat-upgrade-python38-requestsredhat-upgrade-python38-rpm-macrosredhat-upgrade-python38-scipyredhat-upgrade-python38-scipy-debuginforedhat-upgrade-python38-setuptoolsredhat-upgrade-python38-setuptools-wheelredhat-upgrade-python38-sixredhat-upgrade-python38-testredhat-upgrade-python38-tkinterredhat-upgrade-python38-urllib3redhat-upgrade-python38-wcwidthredhat-upgrade-python38-wheelredhat-upgrade-python38-wheel-wheelredhat-upgrade-python39redhat-upgrade-python39-attrsredhat-upgrade-python39-cffiredhat-upgrade-python39-cffi-debuginforedhat-upgrade-python39-chardetredhat-upgrade-python39-cryptographyredhat-upgrade-python39-cryptography-debuginforedhat-upgrade-python39-cythonredhat-upgrade-python39-cython-debuginforedhat-upgrade-python39-debugredhat-upgrade-python39-debuginforedhat-upgrade-python39-debugsourceredhat-upgrade-python39-develredhat-upgrade-python39-idleredhat-upgrade-python39-idnaredhat-upgrade-python39-iniconfigredhat-upgrade-python39-libsredhat-upgrade-python39-lxmlredhat-upgrade-python39-lxml-debuginforedhat-upgrade-python39-mod_wsgiredhat-upgrade-python39-more-itertoolsredhat-upgrade-python39-numpyredhat-upgrade-python39-numpy-debuginforedhat-upgrade-python39-numpy-docredhat-upgrade-python39-numpy-f2pyredhat-upgrade-python39-packagingredhat-upgrade-python39-pipredhat-upgrade-python39-pip-wheelredhat-upgrade-python39-pluggyredhat-upgrade-python39-plyredhat-upgrade-python39-psutilredhat-upgrade-python39-psutil-debuginforedhat-upgrade-python39-psycopg2redhat-upgrade-python39-psycopg2-debuginforedhat-upgrade-python39-psycopg2-docredhat-upgrade-python39-psycopg2-testsredhat-upgrade-python39-pyredhat-upgrade-python39-pybind11redhat-upgrade-python39-pybind11-develredhat-upgrade-python39-pycparserredhat-upgrade-python39-pymysqlredhat-upgrade-python39-pyparsingredhat-upgrade-python39-pysocksredhat-upgrade-python39-pytestredhat-upgrade-python39-pyyamlredhat-upgrade-python39-pyyaml-debuginforedhat-upgrade-python39-requestsredhat-upgrade-python39-rpm-macrosredhat-upgrade-python39-scipyredhat-upgrade-python39-scipy-debuginforedhat-upgrade-python39-setuptoolsredhat-upgrade-python39-setuptools-wheelredhat-upgrade-python39-sixredhat-upgrade-python39-testredhat-upgrade-python39-tkinterredhat-upgrade-python39-tomlredhat-upgrade-python39-urllib3redhat-upgrade-python39-wcwidthredhat-upgrade-python39-wheelredhat-upgrade-python39-wheel-wheelredhat-upgrade-pyyaml-debugsourceredhat-upgrade-scipy-debugsource
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