An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade python38-wheelUpgrade python39-more-itertoolsUpgrade python38-attrsUpgrade python39-packagingUpgrade python38-cffiUpgrade python39-wcwidthUpgrade python38-urllib3Upgrade python38-psycopg2-docUpgrade python39-setuptools-wheelUpgrade python38-setuptoolsUpgrade python39-scipyUpgrade python38-cryptographyUpgrade python39-iniconfigUpgrade python38-setuptools-wheelUpgrade python38-pyUpgrade python39-urllib3Upgrade python39-numpyUpgrade python39-sixUpgrade python38-jinja2Upgrade python39-psycopg2-testsUpgrade python38-numpy-f2pyUpgrade python39-wheelUpgrade python39-cryptographyUpgrade python38-mod_wsgiUpgrade python39-PyMySQLUpgrade python39-pluggyUpgrade python39-pyyamlUpgrade python39-numpy-f2pyUpgrade python38-numpyUpgrade python38-pyparsingUpgrade python38-pysocksUpgrade python39-chardetUpgrade python39-psycopg2-docUpgrade python38-wheel-wheelUpgrade python38-requestsUpgrade python38-more-itertoolsUpgrade python38-psutilUpgrade python39-numpy-docUpgrade python39-pycparserUpgrade python38-psycopg2Upgrade python38-plyUpgrade python39-CythonUpgrade python39-pyUpgrade python38-asn1cryptoUpgrade python38-markupsafeUpgrade python38-pytzUpgrade python38-atomicwritesUpgrade python38-sixUpgrade python39-pysocksUpgrade python39-pytestUpgrade python38-PyMySQLUpgrade python38-wcwidthUpgrade python39-pyparsingUpgrade python38-numpy-docUpgrade python39-wheel-wheelUpgrade python39-mod_wsgiUpgrade python39-plyUpgrade python39-tomlUpgrade python39-cffiUpgrade python38-babelUpgrade python38-pycparserUpgrade python38-pyyamlUpgrade python38-pytestUpgrade python38-pluggyUpgrade python38-packagingUpgrade python38-idnaUpgrade python39-psycopg2Upgrade python38-chardetUpgrade python39-setuptoolsUpgrade python38-psycopg2-testsUpgrade python38-scipyUpgrade python39-requestsUpgrade python39-attrsUpgrade python39-idnaUpgrade python39-psutilUpgrade python38-Cython | May 13, 2022 | Jun 29, 2021 |
| Amazon Linux Ami 2 | — | Upgrade python-urllib3 | Jul 19, 2021 | Jun 29, 2021 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jun 29, 2021 |
| Centos_linux | — | Upgrade python39-setuptoolsUpgrade python39-psycopg2-debuginfoUpgrade python39-psutilUpgrade python39-pysocksUpgrade python39-pyyamlUpgrade python38-pyyamlUpgrade python38-sixUpgrade python39-numpy-docUpgrade python39-rpm-macrosUpgrade python39-wheel-wheelUpgrade python38-pysocksUpgrade python38-requestsUpgrade python39-chardetUpgrade python38-PyMySQLUpgrade python39-debuginfoUpgrade python38-wheel-wheelUpgrade python38-Cython-debuginfoUpgrade python38-pipUpgrade python39-lxml-debuginfoUpgrade python38-wheelUpgrade python39-pycparserUpgrade python39-tomlUpgrade Cython-debugsourceUpgrade python39-cffiUpgrade python38-pytzUpgrade python-cryptography-debugsourceUpgrade python38-debuginfoUpgrade python-markupsafe-debugsourceUpgrade python38-lxmlUpgrade python39-libsUpgrade python38-develUpgrade python39-cryptography-debuginfoUpgrade python39-develUpgrade python39-idleUpgrade python38-setuptoolsUpgrade python39-pipUpgrade python38-rpm-macrosUpgrade python39-wheelUpgrade python38-numpy-debuginfoUpgrade python39-plyUpgrade python38-cffi-debuginfoUpgrade python39-debugsourceUpgrade python39-requestsUpgrade python38-tkinterUpgrade python38-markupsafe-debuginfoUpgrade python39-cffi-debuginfoUpgrade python38-CythonUpgrade python39-scipy-debuginfoUpgrade python39-psycopg2-testsUpgrade python39-psutil-debuginfoUpgrade python39-testUpgrade python38-mod_wsgiUpgrade python38-psycopg2Upgrade python39Upgrade python38-asn1cryptoUpgrade python38-psutil-debuginfoUpgrade python38-numpy-f2pyUpgrade python38-debugUpgrade python39-urllib3Upgrade python38-pyyaml-debuginfoUpgrade python39-pip-wheelUpgrade python39-lxmlUpgrade python38-scipyUpgrade python38-psutilUpgrade python38-plyUpgrade python38Upgrade python-psutil-debugsourceUpgrade python39-numpy-f2pyUpgrade python39-numpy-debuginfoUpgrade python38-psycopg2-docUpgrade python38-cryptographyUpgrade python38-babelUpgrade python39-sixUpgrade python38-scipy-debuginfoUpgrade python-psycopg2-debugsourceUpgrade python39-scipyUpgrade python39-psycopg2-docUpgrade python39-mod_wsgiUpgrade python39-numpyUpgrade python39-idnaUpgrade python38-testUpgrade python38-pip-wheelUpgrade python38-idleUpgrade python38-numpyUpgrade python38-cryptography-debuginfoUpgrade python38-chardetUpgrade python39-PyMySQLUpgrade PyYAML-debugsourceUpgrade python38-debugsourceUpgrade numpy-debugsourceUpgrade python39-cryptographyUpgrade python38-setuptools-wheelUpgrade python38-psycopg2-debuginfoUpgrade python38-lxml-debuginfoUpgrade python38-jinja2Upgrade python38-urllib3Upgrade python-lxml-debugsourceUpgrade python38-pycparserUpgrade python38-numpy-docUpgrade python38-markupsafeUpgrade python38-psycopg2-testsUpgrade python38-idnaUpgrade python39-psycopg2Upgrade python39-setuptools-wheelUpgrade python38-libsUpgrade python-cffi-debugsourceUpgrade python38-cffiUpgrade scipy-debugsourceUpgrade python39-tkinterUpgrade python39-pyyaml-debuginfo | Nov 10, 2021 | Jun 29, 2021 |
| Debian | — | Upgrade python-urllib3 | Jul 30, 2024 | Jun 29, 2021 |
| Gentoo Linux | — | Upgrade dev-python/urllib3. | Jul 16, 2021 | Jun 29, 2021 |
| Huawei Euleros 2_0_sp10 | — | Upgrade python-pip-wheelUpgrade python3-pip | Dec 22, 2022 | Jun 29, 2021 |
| Oracle Solaris | — | Upgrade library/python/urllib3-39 to version 1.26.6-11.4.37.0.1.101.1 on Solaris 11.4Upgrade library/python/urllib3 to version 1.26.6-11.4.37.0.1.101.1 on Solaris 11.4Upgrade library/python/urllib3-37 to version 1.26.6-11.4.37.0.1.101.1 on Solaris 11.4Upgrade library/python/urllib3-27 to version 1.26.6-11.4.37.0.1.101.1 on Solaris 11.4 | Oct 12, 2021 | Jun 29, 2021 |
| Oracle_linux | — | Upgrade python39-pysocksUpgrade python39-psutilUpgrade python39-PyMySQLUpgrade python39-psycopg2-testsUpgrade python38Upgrade python38-libsUpgrade python38-idnaUpgrade python39-develUpgrade python38-psycopg2-testsUpgrade python38-CythonUpgrade python38-packagingUpgrade python38-lxmlUpgrade python39-more-itertoolsUpgrade python38-cffiUpgrade python38-pyparsingUpgrade python38-pyUpgrade python38-psycopg2-docUpgrade python38-wheelUpgrade python39-psycopg2-docUpgrade python38-sixUpgrade python39-requestsUpgrade python38-idleUpgrade python38-numpy-f2pyUpgrade python38-scipyUpgrade python38-urllib3Upgrade python39-pluggyUpgrade python38-pysocksUpgrade python38-numpy-docUpgrade python39-debugUpgrade python39-pytestUpgrade python38-pluggyUpgrade python39-pip-wheelUpgrade python38-develUpgrade python39-libsUpgrade python38-markupsafeUpgrade python38-pip-wheelUpgrade python39-wheelUpgrade python39-wheel-wheelUpgrade python38-PyMySQLUpgrade python38-pycparserUpgrade python39-pybind11Upgrade python39-psycopg2Upgrade python38-atomicwritesUpgrade python38-pipUpgrade python38-psycopg2Upgrade python39-mod_wsgiUpgrade python39-numpy-docUpgrade python39-packagingUpgrade python39-tkinterUpgrade python39-testUpgrade python39-attrsUpgrade python38-wheel-wheelUpgrade python38-setuptoolsUpgrade python38-rpm-macrosUpgrade python38-pytestUpgrade python39-lxmlUpgrade python39-CythonUpgrade python39-chardetUpgrade python39-pipUpgrade python39-sixUpgrade python39-pyyamlUpgrade python38-cryptographyUpgrade python38-asn1cryptoUpgrade python38-pytzUpgrade python38-jinja2Upgrade python39-urllib3Upgrade python38-more-itertoolsUpgrade python39-idleUpgrade python38-tkinterUpgrade python39-numpyUpgrade python39-cryptographyUpgrade python38-setuptools-wheelUpgrade python38-requestsUpgrade python38-plyUpgrade python38-mod_wsgiUpgrade python38-debugUpgrade python38-psutilUpgrade python39-setuptools-wheelUpgrade python39-setuptoolsUpgrade python39-scipyUpgrade python38-testUpgrade python39-wcwidthUpgrade python39-pyparsingUpgrade python39-idnaUpgrade python38-pyyamlUpgrade python38-babelUpgrade python38-attrsUpgrade python39-plyUpgrade python39Upgrade python38-chardetUpgrade python39-pyUpgrade python38-wcwidthUpgrade python39-rpm-macrosUpgrade python38-numpyUpgrade python39-numpy-f2pyUpgrade python39-tomlUpgrade python39-pycparserUpgrade python39-pybind11-develUpgrade python39-iniconfigUpgrade python39-cffi | Jul 22, 2024 | Jun 1, 2021 |
| Redhat_linux | — | Upgrade python39-pybind11Upgrade python38-plyUpgrade python38-setuptools-wheelUpgrade Cython-debugsourceUpgrade python39-tkinterUpgrade python38-CythonUpgrade python39-setuptools-wheelUpgrade python39-numpyUpgrade python-psycopg2-debugsourceUpgrade python38-urllib3Upgrade python38-setuptoolsUpgrade python38-scipy-debuginfoUpgrade python38-psutilUpgrade python39-setuptoolsUpgrade python39-pyparsingUpgrade python38-more-itertoolsUpgrade python39-rpm-macrosUpgrade python38-psycopg2-debuginfoUpgrade python38-requestsUpgrade python39-plyUpgrade python39-idnaUpgrade python38-debugUpgrade python39-urllib3Upgrade python38-pyyamlUpgrade python38-pipUpgrade python38-cffi-debuginfoUpgrade python-cryptography-debugsourceUpgrade python38-pytzUpgrade python39-pytestUpgrade python39-sixUpgrade python38-cryptographyUpgrade python38-lxmlUpgrade python39-tomlUpgrade python38-idleUpgrade python39-scipyUpgrade python39-pysocksUpgrade python38-mod_wsgiUpgrade python39-packagingUpgrade python39-pipUpgrade python39-pyUpgrade python39-CythonUpgrade python38-pyyaml-debuginfoUpgrade python39-pybind11-develUpgrade python38-lxml-debuginfoUpgrade python39-numpy-f2pyUpgrade python39-pycparserUpgrade python38-jinja2Upgrade python38-debugsourceUpgrade python38-chardetUpgrade python38Upgrade python38-wcwidthUpgrade python39-psycopg2-testsUpgrade scipy-debugsourceUpgrade python39-iniconfigUpgrade python39-pyyamlUpgrade python38-babelUpgrade python39-chardetUpgrade python-lxml-debugsourceUpgrade python39-cryptographyUpgrade python38-numpy-docUpgrade python39-scipy-debuginfoUpgrade python38-markupsafe-debuginfoUpgrade python38-pyparsingUpgrade python38-sixUpgrade python39-psycopg2Upgrade python38-tkinterUpgrade numpy-debugsourceUpgrade python39-Cython-debuginfoUpgrade python39-cryptography-debuginfoUpgrade python38-PyMySQLUpgrade python39-psutilUpgrade python38-numpy-debuginfoUpgrade python38-testUpgrade python39-libsUpgrade python38-wheelUpgrade python39-wheel-wheelUpgrade python39-requestsUpgrade python38-attrsUpgrade python38-wheel-wheelUpgrade python38-packagingUpgrade python38-idnaUpgrade python39-pluggyUpgrade python39-testUpgrade python38-pytestUpgrade python39-numpy-debuginfoUpgrade python38-numpyUpgrade python-cffi-debugsourceUpgrade python39-debuginfoUpgrade python39-mod_wsgiUpgrade python38-atomicwritesUpgrade python38-cffiUpgrade python39-wheelUpgrade python39-wcwidthUpgrade python39-debugsourceUpgrade python39-PyMySQLUpgrade python38-pip-wheelUpgrade python39-more-itertoolsUpgrade PyYAML-debugsourceUpgrade python38-psycopg2-testsUpgrade python39-debugUpgrade python38-scipyUpgrade python39-cffi-debuginfoUpgrade python38-Cython-debuginfoUpgrade python38-cryptography-debuginfoUpgrade python-psutil-debugsourceUpgrade python38-develUpgrade python38-numpy-f2pyUpgrade python38-pysocksUpgrade python39-cffiUpgrade python-markupsafe-debugsourceUpgrade python39-psycopg2-docUpgrade python39-lxmlUpgrade python39Upgrade python38-psutil-debuginfoUpgrade python38-debuginfoUpgrade python38-rpm-macrosUpgrade python38-pycparserUpgrade python39-attrsUpgrade python38-markupsafeUpgrade python38-pyUpgrade python38-pluggyUpgrade python39-idleUpgrade python39-numpy-docUpgrade python39-develUpgrade python38-libsUpgrade python39-pyyaml-debuginfoUpgrade python39-psycopg2-debuginfoUpgrade python39-psutil-debuginfoUpgrade python39-pip-wheelUpgrade python38-psycopg2-docUpgrade python39-lxml-debuginfoUpgrade python38-psycopg2Upgrade python38-asn1crypto | Nov 10, 2021 | Jun 29, 2021 |
| Rocky_linux | — | Upgrade python39-pyyaml-debuginfoUpgrade numpy-debugsourceUpgrade python39-tkinterUpgrade python38-debuginfoUpgrade python38-markupsafeUpgrade python39-psutilUpgrade python38-debugsourceUpgrade python38Upgrade python38-Cython-debuginfoUpgrade python38-lxml-debuginfoUpgrade python-cffi-debugsourceUpgrade python38-pyyaml-debuginfoUpgrade python38-scipyUpgrade PyYAML-debugsourceUpgrade python38-CythonUpgrade python38-pyyamlUpgrade python38-psycopg2-testsUpgrade python39-testUpgrade python39-cffiUpgrade python39-scipy-debuginfoUpgrade python38-numpy-debuginfoUpgrade python39-cryptography-debuginfoUpgrade python39-numpy-debuginfoUpgrade python39-debuginfoUpgrade python39-mod_wsgiUpgrade python39-psycopg2Upgrade python39-psycopg2-debuginfoUpgrade python-psutil-debugsourceUpgrade python38-debugUpgrade python39-debugUpgrade python39-psutil-debuginfoUpgrade python39-numpy-f2pyUpgrade python38-numpyUpgrade python39-Cython-debuginfoUpgrade python39Upgrade Cython-debugsourceUpgrade python39-libsUpgrade python38-psutil-debuginfoUpgrade python38-numpy-f2pyUpgrade python39-cffi-debuginfoUpgrade python39-cryptographyUpgrade python38-psycopg2-debuginfoUpgrade python39-psycopg2-testsUpgrade python38-lxmlUpgrade scipy-debugsourceUpgrade python38-psutilUpgrade python38-testUpgrade python-markupsafe-debugsourceUpgrade python38-tkinterUpgrade python38-psycopg2-docUpgrade python-psycopg2-debugsourceUpgrade python39-debugsourceUpgrade python38-cryptographyUpgrade python38-cffi-debuginfoUpgrade python39-idleUpgrade python38-develUpgrade python38-mod_wsgiUpgrade python39-pyyamlUpgrade python39-develUpgrade python38-markupsafe-debuginfoUpgrade python39-pybind11-develUpgrade python39-numpyUpgrade python39-CythonUpgrade python38-scipy-debuginfoUpgrade python38-idleUpgrade python38-cffiUpgrade python-lxml-debugsourceUpgrade python39-scipyUpgrade python39-lxml-debuginfoUpgrade python38-cryptography-debuginfoUpgrade python38-psycopg2Upgrade python39-pybind11Upgrade python39-psycopg2-docUpgrade python-cryptography-debugsourceUpgrade python39-lxmlUpgrade python38-libs | Mar 12, 2024 | Jun 29, 2021 |
| Splunk | — | Upgrade Splunk Enterprise to version 8.1.14Upgrade Splunk Enterprise to version 8.2.11Upgrade Splunk Enterprise to version 9.0.5 | Sep 30, 2025 | Jun 29, 2021 |
| Suse | — | Upgrade python3-urllib3Upgrade python-urllib3 | Jun 19, 2021 | Jun 18, 2021 |
| Ubuntu | — | Upgrade python3-urllib3 | Jan 20, 2023 | Jun 18, 2021 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Jun 29, 2021 |
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