The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted malformed inputs potentially leading to amplified denial-of-service.
CVSS Details
- CVSS 3.1 Base Score: 4.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade python39-psycopg2-docUpgrade python39-scipyUpgrade python39-numpy-f2pyUpgrade python-unversioned-commandUpgrade python39-pip-wheelUpgrade python39-lxmlUpgrade python39-tkinterUpgrade python3-debugUpgrade python39-setuptools-wheelUpgrade python39-urllib3Upgrade python39-CythonUpgrade python39-packagingUpgrade python39-sixUpgrade python39-cryptographyUpgrade python39-psycopg2Upgrade python39-wcwidthUpgrade python39-chardetUpgrade python39-numpyUpgrade python3Upgrade python3-testUpgrade python39-mod_wsgiUpgrade python39-idnaUpgrade python39-pytestUpgrade python3-idleUpgrade python39-wheelUpgrade python3-tkinterUpgrade python39-cffiUpgrade python39-pyyamlUpgrade python3-develUpgrade python39-tomlUpgrade python39-pyparsingUpgrade python39-plyUpgrade python39-pysocksUpgrade python39-PyMySQLUpgrade python39-attrsUpgrade python39-pybind11Upgrade python39-setuptoolsUpgrade python39-idleUpgrade python39-pycparserUpgrade python3-libsUpgrade python39-psutilUpgrade python39-debugUpgrade python39-wheel-wheelUpgrade python39-libsUpgrade python39-more-itertoolsUpgrade python39-rpm-macrosUpgrade python39-requestsUpgrade python39-testUpgrade python39-develUpgrade python39Upgrade python39-pluggyUpgrade python39-pyUpgrade python39-iniconfigUpgrade python39-numpy-docUpgrade python39-pipUpgrade python39-psycopg2-testsUpgrade python39-pybind11-devel | Dec 23, 2025 | Dec 17, 2025 |
| Amazon Linux Ami 2 | — | Upgrade python3-develUpgrade pythonUpgrade python3-debuginfoUpgrade python3-tkinterUpgrade python3-libsUpgrade python-debugUpgrade python-toolsUpgrade python-debuginfoUpgrade python3Upgrade tkinterUpgrade python3-debugUpgrade python-develUpgrade python3-testUpgrade python-libsUpgrade python3-toolsUpgrade python-test | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade python3Upgrade python3.11-idleUpgrade python3.11-debuginfoUpgrade python3.12-idleUpgrade python-unversioned-commandUpgrade python3.12-develUpgrade python3.11-libsUpgrade python3.12-testUpgrade python3.12-debugsourceUpgrade python3.12-libsUpgrade python3.9-debugsourceUpgrade python3.12-debugUpgrade python3.12Upgrade python3.9-debuginfoUpgrade python3-libsUpgrade python3-testUpgrade python3.11-develUpgrade python3-develUpgrade python3.12-tkinterUpgrade python3.12-debuginfoUpgrade python3.11Upgrade python3-debugUpgrade python3.11-debugUpgrade python3-idleUpgrade python3-tkinterUpgrade python3.11-tkinterUpgrade python3.11-testUpgrade python3.11-debugsource | Jul 11, 2025 | Jun 17, 2025 |
| Debian | — | Upgrade python3.13Upgrade python3.11Upgrade python3.9Upgrade pypy3 | Jun 20, 2025 | Jun 17, 2025 |
| Dell Powerstore Dsa2025429 | — | Upgrade Dell PowerStoreOS to the latest version | Dec 3, 2025 | Dec 2, 2025 |
| Dell Powerstore Dsa2026039 | — | Upgrade Dell PowerStoreOS to the latest version | Jan 13, 2026 | Jan 6, 2026 |
| Dell Powerstore Dsa2026115 | — | Upgrade Dell PowerStoreOS to the latest version | Feb 25, 2026 | Feb 24, 2026 |
| Huawei Euleros 2_0_sp10 | — | Upgrade python3-unversioned-commandUpgrade python3-fgoUpgrade python3 | Jan 15, 2026 | Jan 13, 2026 |
| Huawei Euleros 2_0_sp11 | — | Upgrade python3Upgrade python3-unversioned-command | Dec 12, 2025 | Dec 11, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-fgoUpgrade python3-unversioned-commandUpgrade python3 | Jan 15, 2026 | Jan 13, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade python3Upgrade python3-unversioned-commandUpgrade python3-fgo | Dec 12, 2025 | Dec 11, 2025 |
| Oracle Missing Cpu Jan 2026 | — | Apply the January 2026 Critical Patch Update (CPU) for Oracle Database | Jan 21, 2026 | Jan 20, 2026 |
| Oracle_linux | — | Upgrade python39-pluggyUpgrade python39-psycopg2-docUpgrade python39-pybind11Upgrade python39-psycopg2Upgrade python39-wheelUpgrade python39-idleUpgrade python39-mod_wsgiUpgrade python39-libsUpgrade python39-more-itertoolsUpgrade python39-psycopg2-testsUpgrade python39-numpy-docUpgrade python39-packagingUpgrade python39-wheel-wheelUpgrade python39-psutilUpgrade python39-testUpgrade python39Upgrade python39-requestsUpgrade python39-wcwidthUpgrade python39-cffiUpgrade python39-develUpgrade python-unversioned-commandUpgrade python3-libsUpgrade python39-debugUpgrade python39-pip-wheelUpgrade python39-PyMySQLUpgrade python3-testUpgrade python39-attrsUpgrade python39-pipUpgrade python3-idleUpgrade python39-tomlUpgrade python39-pyparsingUpgrade python39-plyUpgrade python39-chardetUpgrade python39-pycparserUpgrade python39-numpy-f2pyUpgrade python39-iniconfigUpgrade python39-scipyUpgrade python39-pyyamlUpgrade python39-idnaUpgrade python3-tkinterUpgrade python39-urllib3Upgrade python39-lxmlUpgrade python39-cryptographyUpgrade python39-pysocksUpgrade python39-pytestUpgrade python39-numpyUpgrade python3-debugUpgrade python39-pybind11-develUpgrade python3-develUpgrade python39-tkinterUpgrade python39-setuptoolsUpgrade python39-rpm-macrosUpgrade python39-pyUpgrade python3Upgrade python39-sixUpgrade python39-setuptools-wheelUpgrade python39-Cython | Dec 22, 2025 | Jun 17, 2025 |
| Redhat_linux | — | Upgrade python39-numpy-docUpgrade scipy-debugsourceUpgrade python39-mod_wsgiUpgrade python39-rpm-macrosUpgrade python39-psycopg2-debuginfoUpgrade python39-idnaUpgrade python-psutil-debugsourceUpgrade python3-testUpgrade python39-pyUpgrade python39-urllib3No solution existsUpgrade python39-psutil-debuginfoUpgrade python39-pyyamlUpgrade python39-cffiUpgrade python39-cryptographyUpgrade python39-psutilUpgrade python39-pip-wheelUpgrade python39-plyUpgrade python39-Cython-debuginfoUpgrade python3.9-debuginfoUpgrade python39-idleUpgrade python39-numpy-debuginfoUpgrade numpy-debugsourceUpgrade python39Upgrade python39-pysocksUpgrade python3-tkinterUpgrade python39-wheelUpgrade python39-psycopg2Upgrade python-psycopg2-debugsourceUpgrade python39-chardetUpgrade python3-debugUpgrade python3-develUpgrade python39-requestsUpgrade python39-libsUpgrade python39-pycparserUpgrade python-cffi-debugsourceUpgrade python39-tomlUpgrade python39-setuptoolsUpgrade python-cryptography-debugsourceUpgrade python39-lxml-debuginfoUpgrade python3-libsUpgrade python39-cryptography-debuginfoUpgrade python39-pytestUpgrade python39-pipUpgrade python39-debugsourceUpgrade python39-sixUpgrade python39-pyyaml-debuginfoUpgrade python39-setuptools-wheelUpgrade python39-CythonUpgrade python39-lxmlUpgrade python3Upgrade python39-tkinterUpgrade python39-more-itertoolsUpgrade python39-pybind11-develUpgrade python-lxml-debugsourceUpgrade python39-wheel-wheelUpgrade python39-psycopg2-docUpgrade python39-wcwidthUpgrade python39-testUpgrade python39-PyMySQLUpgrade python39-pybind11Upgrade python39-psycopg2-testsUpgrade python39-iniconfigUpgrade python39-develUpgrade python3-idleUpgrade python39-pyparsingUpgrade PyYAML-debugsourceUpgrade Cython-debugsourceUpgrade python39-numpy-f2pyUpgrade python3.9-debugsourceUpgrade python39-scipyUpgrade python39-debuginfoUpgrade python39-cffi-debuginfoUpgrade python-unversioned-commandUpgrade python39-packagingUpgrade python39-numpyUpgrade python39-pluggyUpgrade python39-attrsUpgrade python39-scipy-debuginfoUpgrade python39-debug | Jul 9, 2025 | Jun 17, 2025 |
| Rocky_linux | — | Upgrade python39-numpy-debuginfoUpgrade python-psutil-debugsourceUpgrade scipy-debugsourceUpgrade python39-lxml-debuginfoUpgrade python3-debugUpgrade python39-mod_wsgiUpgrade python39-pyyaml-debuginfoUpgrade python39-debugUpgrade python39-psycopg2Upgrade python39-numpyUpgrade python3Upgrade python39-psycopg2-docUpgrade python-cffi-debugsourceUpgrade python39-CythonUpgrade python3-testUpgrade python39-cffiUpgrade python39-psutil-debuginfoUpgrade numpy-debugsourceUpgrade python39-scipyUpgrade python39-psycopg2-debuginfoUpgrade python39-cryptographyUpgrade python39-debugsourceUpgrade python39-psutilUpgrade PyYAML-debugsourceUpgrade python39Upgrade python39-cffi-debuginfoUpgrade python39-scipy-debuginfoUpgrade python-lxml-debugsourceUpgrade python39-tkinterUpgrade python3-develUpgrade python39-testUpgrade python39-libsUpgrade python3-libsUpgrade python3.9-debugsourceUpgrade python3.9-debuginfoUpgrade python39-pybind11-develUpgrade python39-pyyamlUpgrade python39-numpy-f2pyUpgrade python39-idleUpgrade python-psycopg2-debugsourceUpgrade python39-debuginfoUpgrade python39-Cython-debuginfoUpgrade Cython-debugsourceUpgrade python39-cryptography-debuginfoUpgrade python3-tkinterUpgrade python3-idleUpgrade python39-psycopg2-testsUpgrade python-cryptography-debugsourceUpgrade python39-pybind11Upgrade python39-develUpgrade python39-lxml | Feb 5, 2026 | Dec 18, 2025 |
| Suse | — | Upgrade python39-32bitUpgrade python312-baseUpgrade python313-idleUpgrade python310-tkUpgrade python3-docUpgrade libpython3_10-1_0-32bitUpgrade python310-toolsUpgrade python310-testsuiteUpgrade python-xmlUpgrade python39-testsuiteUpgrade python311-develUpgrade python39-docUpgrade libpython3_11-1_0-32bitUpgrade python313-base-x86-64-v3Upgrade python310Upgrade python-docUpgrade python312-toolsUpgrade python310-docUpgrade python39-idleUpgrade python310-doc-devhelpUpgrade libpython2_7-1_0-32bitUpgrade python311-base-32bitUpgrade python312-idleUpgrade python311-idleUpgrade python310-cursesUpgrade python310-idleUpgrade python312-tkUpgrade python313-docUpgrade python3-cursesUpgrade python310-base-32bitUpgrade python311-cursesUpgrade python-develUpgrade libpython3_12-1_0-32bitUpgrade python39-base-32bitUpgrade python313-baseUpgrade python313-cursesUpgrade python312Upgrade python39-doc-devhelpUpgrade libpython3_9-1_0-32bitUpgrade python-base-32bitUpgrade python-idleUpgrade libpython3_13-1_0-x86-64-v3Upgrade python3-toolsUpgrade python-demoUpgrade python3-testsuiteUpgrade python-doc-pdfUpgrade python311-testsuiteUpgrade python39-dbmUpgrade python311-32bitUpgrade python312-docUpgrade python311-doc-devhelpUpgrade python3Upgrade python3-doc-devhelpUpgrade libpython3_6m1_0-32bitUpgrade python-tkUpgrade python311-dbmUpgrade libpython3_12-1_0Upgrade python-baseUpgrade libpython3_4m1_0Upgrade libpython3_10-1_0Upgrade python39-toolsUpgrade python312-testsuiteUpgrade python313-develUpgrade libpython3_4m1_0-32bitUpgrade python39-develUpgrade python313-toolsUpgrade python312-base-32bitUpgrade python311-docUpgrade python-cursesUpgrade python311-baseUpgrade python3-dbmUpgrade python313-x86-64-v3Upgrade python312-doc-devhelpUpgrade python3-develUpgrade python36Upgrade python313-dbmUpgrade python312-develUpgrade python312-cursesUpgrade python310-baseUpgrade libpython3_13-1_0Upgrade python39Upgrade python36-baseUpgrade python-gdbmUpgrade python3-baseUpgrade python39-tkUpgrade python313Upgrade python39-baseUpgrade python313-tkUpgrade python3-idleUpgrade python313-doc-devhelpUpgrade python310-develUpgrade python-32bitUpgrade python311-toolsUpgrade python311-tkUpgrade python312-32bitUpgrade python311Upgrade python310-32bitUpgrade python312-dbmUpgrade libpython2_7-1_0Upgrade python36-develUpgrade libpython3_9-1_0Upgrade libpython3_6m1_0Upgrade libpython3_11-1_0Upgrade python3-tkUpgrade pythonUpgrade python39-cursesUpgrade python310-dbm | Jul 8, 2025 | Jun 17, 2025 |
| Ubuntu | — | Upgrade libpython3.11 (Ubuntu Pro)Upgrade python3.10Upgrade libpython3.10Upgrade libpython3.9 (Ubuntu Pro)Upgrade libpython3.5 (Ubuntu Pro)Upgrade libpython3.4 (Ubuntu Pro)Upgrade libpython3.12t64Upgrade libpython3.7 (Ubuntu Pro)Upgrade python3.8 (Ubuntu Pro)Upgrade python3.12Upgrade idle-python3.8 (Ubuntu Pro)Upgrade libpython3.6 (Ubuntu Pro)Upgrade python3.13Upgrade python3.7 (Ubuntu Pro)Upgrade libpython3.8 (Ubuntu Pro)Upgrade libpython3.13Upgrade python3.5 (Ubuntu Pro)Upgrade python3.4 (Ubuntu Pro)Upgrade python3.9 (Ubuntu Pro)Upgrade python3.6 (Ubuntu Pro)Upgrade python3.11 (Ubuntu Pro) | Jul 1, 2025 | Jun 17, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Jun 17, 2025 |
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