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-packagingUpgrade python38-PyMySQLUpgrade python38-asn1cryptoUpgrade python39-pyUpgrade python38-pycparserUpgrade python39-idnaUpgrade python38-idnaUpgrade python38-markupsafeUpgrade python38-CythonUpgrade python39-wheel-wheelUpgrade python38-pytzUpgrade python39-tomlUpgrade python38-wcwidthUpgrade python38-sixUpgrade python38-pluggyUpgrade python38-chardetUpgrade python39-setuptoolsUpgrade python38-psycopg2-testsUpgrade python38-pytestUpgrade python38-pyyamlUpgrade python39-plyUpgrade python38-atomicwritesUpgrade python39-mod_wsgiUpgrade python39-cffiUpgrade python38-numpy-docUpgrade python38-babelUpgrade python39-pysocksUpgrade python39-attrsUpgrade python39-pytestUpgrade python39-psycopg2Upgrade python39-requestsUpgrade python39-pyparsingUpgrade python38-scipyUpgrade python39-psutilUpgrade python38-psutilUpgrade python38-wheelUpgrade python39-packagingUpgrade python38-cffiUpgrade python39-CythonUpgrade python38-setuptoolsUpgrade python39-scipyUpgrade python39-numpyUpgrade python38-wheel-wheelUpgrade python38-cryptographyUpgrade python39-wcwidthUpgrade python38-pyparsingUpgrade python39-urllib3Upgrade python39-wheelUpgrade python38-numpy-f2pyUpgrade python39-PyMySQLUpgrade python39-chardetUpgrade python38-urllib3Upgrade python39-cryptographyUpgrade python38-mod_wsgiUpgrade python38-attrsUpgrade python39-pycparserUpgrade python38-psycopg2-docUpgrade python39-setuptools-wheelUpgrade python39-numpy-docUpgrade python39-pluggyUpgrade python38-setuptools-wheelUpgrade python39-sixUpgrade python38-plyUpgrade python39-psycopg2-testsUpgrade python39-more-itertoolsUpgrade python38-psycopg2Upgrade python38-jinja2Upgrade python39-numpy-f2pyUpgrade python38-more-itertoolsUpgrade python38-pysocksUpgrade python38-numpyUpgrade python39-pyyamlUpgrade python39-iniconfigUpgrade python38-pyUpgrade python39-psycopg2-docUpgrade python38-requests | 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 python38-numpy-f2pyUpgrade python38-lxmlUpgrade python39-lxml-debuginfoUpgrade python38-numpy-debuginfoUpgrade python38-debuginfoUpgrade python39-psycopg2-debuginfoUpgrade python39-setuptoolsUpgrade python39-psutilUpgrade python39-tomlUpgrade python39-pycparserUpgrade Cython-debugsourceUpgrade python-cryptography-debugsourceUpgrade python38-Cython-debuginfoUpgrade python38-pipUpgrade python39-chardetUpgrade python38-mod_wsgiUpgrade python38-psycopg2Upgrade python39-scipy-debuginfoUpgrade python39Upgrade python39-psycopg2-testsUpgrade python39-wheelUpgrade python38-psutil-debuginfoUpgrade python39-psutil-debuginfoUpgrade python38-cffi-debuginfoUpgrade python38-markupsafe-debuginfoUpgrade python39-plyUpgrade python38-wheelUpgrade python38-tkinterUpgrade python39-testUpgrade python39-debugsourceUpgrade python38-CythonUpgrade python38-PyMySQLUpgrade python38-requestsUpgrade python39-debuginfoUpgrade python38-asn1cryptoUpgrade python39-requestsUpgrade python39-cffi-debuginfoUpgrade python38-debugUpgrade python39-wheel-wheelUpgrade python38-pysocksUpgrade python38-sixUpgrade python38-pyyamlUpgrade python39-cffiUpgrade python38-wheel-wheelUpgrade python39-cryptography-debuginfoUpgrade python39-develUpgrade python39-idleUpgrade python39-pyyamlUpgrade python39-rpm-macrosUpgrade python39-pysocksUpgrade python39-numpy-docUpgrade python-markupsafe-debugsourceUpgrade python39-libsUpgrade python38-develUpgrade python38-rpm-macrosUpgrade python38-setuptoolsUpgrade python38-pytzUpgrade python39-pipUpgrade python39-numpy-f2pyUpgrade python39-scipyUpgrade python39-mod_wsgiUpgrade PyYAML-debugsourceUpgrade python39-psycopg2Upgrade python38-urllib3Upgrade python38-psycopg2-testsUpgrade python-lxml-debugsourceUpgrade python38-cryptographyUpgrade python38-psycopg2-docUpgrade python38-babelUpgrade python39-psycopg2-docUpgrade python39-urllib3Upgrade python39-tkinterUpgrade python39-pyyaml-debuginfoUpgrade python39-numpy-debuginfoUpgrade python38-scipyUpgrade python38-pyyaml-debuginfoUpgrade python38-psutilUpgrade python38-plyUpgrade python38Upgrade python-psutil-debugsourceUpgrade python38-pycparserUpgrade python38-numpy-docUpgrade python38-markupsafeUpgrade python38-cffiUpgrade python39-pip-wheelUpgrade python39-lxmlUpgrade python38-debugsourceUpgrade numpy-debugsourceUpgrade python39-cryptographyUpgrade python38-setuptools-wheelUpgrade python38-psycopg2-debuginfoUpgrade python38-lxml-debuginfoUpgrade python38-jinja2Upgrade python39-numpyUpgrade python39-idnaUpgrade python38-testUpgrade python38-pip-wheelUpgrade python38-idleUpgrade python38-numpyUpgrade python38-cryptography-debuginfoUpgrade python38-chardetUpgrade scipy-debugsourceUpgrade python38-scipy-debuginfoUpgrade python-psycopg2-debugsourceUpgrade python38-libsUpgrade python-cffi-debugsourceUpgrade python39-PyMySQLUpgrade python39-setuptools-wheelUpgrade python39-sixUpgrade python38-idna | 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 python3-pipUpgrade python-pip-wheel | 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-tomlUpgrade python38-setuptoolsUpgrade python38-chardetUpgrade python38-more-itertoolsUpgrade python38-wheel-wheelUpgrade python39-iniconfigUpgrade python38-testUpgrade python39-pybind11-develUpgrade python39-setuptoolsUpgrade python38-rpm-macrosUpgrade python39-cffiUpgrade python38-plyUpgrade python39-pycparserUpgrade python38-psutilUpgrade python38-pytzUpgrade python38-mod_wsgiUpgrade python39-plyUpgrade python38-cryptographyUpgrade python38-debugUpgrade python38-asn1cryptoUpgrade python38-jinja2Upgrade python38-setuptools-wheelUpgrade python39-cryptographyUpgrade python38-requestsUpgrade python38-wcwidthUpgrade python39-pyUpgrade python39-pyyamlUpgrade python39Upgrade python39-chardetUpgrade python39-urllib3Upgrade python38-attrsUpgrade python38-pytestUpgrade python39-CythonUpgrade python39-wcwidthUpgrade python39-idleUpgrade python39-pyparsingUpgrade python38-babelUpgrade python39-idnaUpgrade python39-setuptools-wheelUpgrade python39-numpyUpgrade python39-pipUpgrade python38-numpyUpgrade python39-scipyUpgrade python39-numpy-f2pyUpgrade python38-pyyamlUpgrade python38-tkinterUpgrade python39-rpm-macrosUpgrade python39-lxmlUpgrade python39-sixUpgrade python39-tkinterUpgrade python38-numpy-docUpgrade python38-CythonUpgrade python39-pybind11Upgrade python39-attrsUpgrade python38-pysocksUpgrade python39-pip-wheelUpgrade python38-atomicwritesUpgrade python39-wheelUpgrade python39-debugUpgrade python39-psycopg2Upgrade python38-libsUpgrade python38-urllib3Upgrade python39-requestsUpgrade python39-psycopg2-docUpgrade python38-wheelUpgrade python38-scipyUpgrade python38-numpy-f2pyUpgrade python38-idleUpgrade python38-sixUpgrade python38-develUpgrade python38-psycopg2Upgrade python39-pytestUpgrade python38-PyMySQLUpgrade python39-libsUpgrade python39-psutilUpgrade python39-PyMySQLUpgrade python38-psycopg2-docUpgrade python38-packagingUpgrade python38Upgrade python39-pysocksUpgrade python38-idnaUpgrade python39-more-itertoolsUpgrade python38-pyparsingUpgrade python38-lxmlUpgrade python38-cffiUpgrade python38-pycparserUpgrade python39-pluggyUpgrade python39-numpy-docUpgrade python39-mod_wsgiUpgrade python39-wheel-wheelUpgrade python39-packagingUpgrade python38-markupsafeUpgrade python38-psycopg2-testsUpgrade python39-develUpgrade python38-pyUpgrade python38-pipUpgrade python39-testUpgrade python39-psycopg2-testsUpgrade python38-pluggyUpgrade python38-pip-wheel | Jul 22, 2024 | Jun 1, 2021 |
| Redhat_linux | — | Upgrade python38-Cython-debuginfoUpgrade python39-psutilUpgrade python38-psycopg2Upgrade python38-PyMySQLUpgrade python39-Cython-debuginfoUpgrade python38-tkinterUpgrade python39-cryptography-debuginfoUpgrade python39-scipy-debuginfoUpgrade python38-attrsUpgrade python38-wheelUpgrade python39-pluggyUpgrade python38-asn1cryptoUpgrade python38-psutil-debuginfoUpgrade python39-lxml-debuginfoUpgrade python39-lxmlUpgrade python39-psycopg2-docUpgrade python38-idnaUpgrade python38-psycopg2-testsUpgrade python38-numpy-docUpgrade python38-packagingUpgrade python39-testUpgrade python38-pytestUpgrade python-markupsafe-debugsourceUpgrade python38-atomicwritesUpgrade python39-pip-wheelUpgrade python38-psycopg2-docUpgrade python39-psutil-debuginfoUpgrade python39-attrsUpgrade python39-cffiUpgrade python39-libsUpgrade python38-wheel-wheelUpgrade python38-pyparsingUpgrade python-cffi-debugsourceUpgrade python39-psycopg2-debuginfoUpgrade python39-pyyaml-debuginfoUpgrade python39-cffi-debuginfoUpgrade python38-libsUpgrade python39-more-itertoolsUpgrade python38-scipyUpgrade python38-pycparserUpgrade python38-pysocksUpgrade python39-requestsUpgrade python38-rpm-macrosUpgrade python38-pluggyUpgrade python38-numpyUpgrade python39-wcwidthUpgrade python39Upgrade python39-debugsourceUpgrade python39-wheel-wheelUpgrade python38-markupsafeUpgrade python38-debuginfoUpgrade python39-wheelUpgrade python38-markupsafe-debuginfoUpgrade python39-mod_wsgiUpgrade python39-develUpgrade python38-cffiUpgrade python-psutil-debugsourceUpgrade python39-debuginfoUpgrade python38-testUpgrade python39-numpy-docUpgrade python38-pyUpgrade python39-PyMySQLUpgrade python38-numpy-debuginfoUpgrade PyYAML-debugsourceUpgrade python39-psycopg2Upgrade python38-numpy-f2pyUpgrade python39-idleUpgrade python39-numpy-debuginfoUpgrade python39-debugUpgrade numpy-debugsourceUpgrade python38-sixUpgrade python38-develUpgrade python38-pip-wheelUpgrade python38-cryptography-debuginfoUpgrade python38-psycopg2-debuginfoUpgrade python38-pyyaml-debuginfoUpgrade python38-lxmlUpgrade python38-more-itertoolsUpgrade python39-sixUpgrade python39-pybind11Upgrade python39-pyparsingUpgrade python38-pytzUpgrade python38-idleUpgrade python39-urllib3Upgrade python39-setuptoolsUpgrade python38-cffi-debuginfoUpgrade python39-pyyamlUpgrade python38-debugUpgrade python39-chardetUpgrade python39-idnaUpgrade python39-iniconfigUpgrade scipy-debugsourceUpgrade python39-tomlUpgrade python38-CythonUpgrade python38-psutilUpgrade python39-pysocksUpgrade python38-scipy-debuginfoUpgrade python38Upgrade python39-scipyUpgrade python39-pipUpgrade python39-packagingUpgrade python38-wcwidthUpgrade python38-setuptoolsUpgrade python39-pybind11-develUpgrade python39-setuptools-wheelUpgrade python38-babelUpgrade python38-jinja2Upgrade python39-cryptographyUpgrade python39-pycparserUpgrade python38-debugsourceUpgrade Cython-debugsourceUpgrade python39-tkinterUpgrade python-psycopg2-debugsourceUpgrade python-lxml-debugsourceUpgrade python39-numpyUpgrade python38-urllib3Upgrade python39-CythonUpgrade python39-psycopg2-testsUpgrade python38-chardetUpgrade python38-cryptographyUpgrade python38-setuptools-wheelUpgrade python39-numpy-f2pyUpgrade python38-lxml-debuginfoUpgrade python38-mod_wsgiUpgrade python-cryptography-debugsourceUpgrade python39-pytestUpgrade python39-rpm-macrosUpgrade python38-pipUpgrade python39-pyUpgrade python38-requestsUpgrade python39-plyUpgrade python38-plyUpgrade python38-pyyaml | Nov 10, 2021 | Jun 29, 2021 |
| Rocky_linux | — | Upgrade python38-psycopg2-debuginfoUpgrade python39-cryptographyUpgrade python38-lxmlUpgrade python39-psycopg2-testsUpgrade python38-psycopg2-docUpgrade python38-psutilUpgrade scipy-debugsourceUpgrade python-cryptography-debugsourceUpgrade python38-mod_wsgiUpgrade python38-scipy-debuginfoUpgrade python38-cffiUpgrade python38-numpy-f2pyUpgrade python39-scipyUpgrade python-lxml-debugsourceUpgrade python39-pybind11Upgrade python38-testUpgrade python38-numpyUpgrade python39-libsUpgrade python39-numpy-f2pyUpgrade python38-psutil-debuginfoUpgrade python39-CythonUpgrade python39-numpyUpgrade python39-cffi-debuginfoUpgrade Cython-debugsourceUpgrade python38-idleUpgrade python39-pybind11-develUpgrade python39-debugsourceUpgrade python39-idleUpgrade python-markupsafe-debugsourceUpgrade python39-pyyamlUpgrade python38-tkinterUpgrade python39Upgrade python39-Cython-debuginfoUpgrade python39-develUpgrade python39-lxml-debuginfoUpgrade python38-cryptography-debuginfoUpgrade python38-psycopg2Upgrade python39-psycopg2-docUpgrade python38-libsUpgrade python38-develUpgrade python-psycopg2-debugsourceUpgrade python38-cffi-debuginfoUpgrade python38-cryptographyUpgrade python39-lxmlUpgrade python39-psutil-debuginfoUpgrade python38-markupsafe-debuginfoUpgrade python38-debuginfoUpgrade python39-psutilUpgrade python-psutil-debugsourceUpgrade python38-pyyamlUpgrade python38-markupsafeUpgrade python39-pyyaml-debuginfoUpgrade python39-debugUpgrade python38Upgrade PyYAML-debugsourceUpgrade python38-numpy-debuginfoUpgrade python39-mod_wsgiUpgrade python38-debugsourceUpgrade python38-psycopg2-testsUpgrade python39-numpy-debuginfoUpgrade python38-debugUpgrade python39-psycopg2Upgrade python39-cryptography-debuginfoUpgrade python38-scipyUpgrade python39-scipy-debuginfoUpgrade python-cffi-debugsourceUpgrade python38-pyyaml-debuginfoUpgrade python38-CythonUpgrade python39-tkinterUpgrade python39-debuginfoUpgrade python39-cffiUpgrade python38-lxml-debuginfoUpgrade python39-testUpgrade python39-psycopg2-debuginfoUpgrade numpy-debugsourceUpgrade python38-Cython-debuginfo | Mar 12, 2024 | Jun 29, 2021 |
| Splunk | — | Upgrade Splunk Enterprise to version 9.0.5Upgrade Splunk Enterprise to version 8.1.14Upgrade Splunk Enterprise to version 8.2.11 | 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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