{"answers":{"affected":"3 open source packages ship an affected version, including libpython, python and python-min. It affects 5 products.","exploited":"There is no known exploitation of CVE-2020-8492 in the wild and no public exploit code.","fix":"Upgrade libpython to a fixed version for your release line: 2.7.18, 3.5.10, 3.6.11 or 3.7.7.","what":"CVE-2020-8492 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 30 Jan 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-8492 and fix it if it is affected.\n\nWhat it is: CVE-2020-8492 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 30 Jan 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2020-8492 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- libpython (Bitnami): affected from 2.7.0; fixed in 2.7.18, 3.5.10, 3.6.11, 3.7.7, 3.8.2\n- python (Bitnami): affected from 2.7.0; fixed in 2.7.18, 3.5.10, 3.6.11, 3.7.7, 3.8.2\n- python-min (Bitnami): affected from 2.7.0; fixed in 2.7.18, 3.5.10, 3.6.11, 3.7.7, 3.8.2\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2020-8492/ (Markdown: https://insights.sbomify.com/CVE-2020-8492/index.md)","id":"CVE-2020-8492","markdown":"https://insights.sbomify.com/CVE-2020-8492/index.md","name":"CVE-2020-8492","record":{"aliases":["ALPINE-CVE-2020-8492","BIT-libpython-2020-8492","BIT-python-2020-8492","BIT-python-min-2020-8492","CLEANSTART-2026-LV14953","DEBIAN-CVE-2020-8492","GHSA-wh3w-rqc7-4mpf","PSF-2020-8","SUSE-SU-2020:14306-1","UBUNTU-CVE-2020-8492"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Python standard library","requires_auth":"none","summary":"A malicious HTTP server can cause a denial of service in Python clients via catastrophic backtracking in the urllib authentication handler.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"leap","vendor":"opensuse"},{"product":"python","vendor":"python"}],"cvss":{"score":6.5,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.","ecosystems":["Bitnami","SUSE:Linux Enterprise Point of Sale 11 SP3","SUSE:Linux Enterprise Server 11 SP4-LTSS"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Denial of service in n/a","id":"CVE-2020-8492","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","opensuse:leap","python:python"],"type":"denial_of_service","year":"2020"},"n_packages":9,"n_references":16,"next":{"headline":"Cross-site scripting in n/a","id":"CVE-2020-8493"},"packages":[{"ecosystem":"Bitnami","fixed":["2.7.18","3.5.10","3.6.11","3.7.7","3.8.2"],"introduced":["2.7.0","3.5.0","3.6.0","3.7.0","3.8.0"],"last_affected":[],"package":"libpython","purl":"pkg:bitnami/libpython","source":"BIT-libpython-2020-8492"},{"ecosystem":"Bitnami","fixed":["2.7.18","3.5.10","3.6.11","3.7.7","3.8.2"],"introduced":["2.7.0","3.5.0","3.6.0","3.7.0","3.8.0"],"last_affected":[],"package":"python","purl":"pkg:bitnami/python","source":"BIT-python-2020-8492"},{"ecosystem":"Bitnami","fixed":["2.7.18","3.5.10","3.6.11","3.7.7","3.8.2"],"introduced":["2.7.0","3.5.0","3.6.0","3.7.0","3.8.0"],"last_affected":[],"package":"python-min","purl":"pkg:bitnami/python-min","source":"BIT-python-min-2020-8492"},{"ecosystem":"SUSE:Linux Enterprise Point of Sale 11 SP3","fixed":["2.6.9-40.35.2"],"introduced":["0"],"last_affected":[],"package":"python","purl":"pkg:rpm/suse/python\u0026distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3","source":"SUSE-SU-2020:14306-1"},{"ecosystem":"SUSE:Linux Enterprise Point of Sale 11 SP3","fixed":["2.6.9-40.35.1"],"introduced":["0"],"last_affected":[],"package":"python-base","purl":"pkg:rpm/suse/python-base\u0026distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3","source":"SUSE-SU-2020:14306-1"},{"ecosystem":"SUSE:Linux Enterprise Point of Sale 11 SP3","fixed":["2.6-8.40.35.1"],"introduced":["0"],"last_affected":[],"package":"python-doc","purl":"pkg:rpm/suse/python-doc\u0026distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3","source":"SUSE-SU-2020:14306-1"},{"ecosystem":"SUSE:Linux Enterprise Server 11 SP4-LTSS","fixed":["2.6.9-40.35.2"],"introduced":["0"],"last_affected":[],"package":"python","purl":"pkg:rpm/suse/python\u0026distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSS","source":"SUSE-SU-2020:14306-1"},{"ecosystem":"SUSE:Linux Enterprise Server 11 SP4-LTSS","fixed":["2.6.9-40.35.1"],"introduced":["0"],"last_affected":[],"package":"python-base","purl":"pkg:rpm/suse/python-base\u0026distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSS","source":"SUSE-SU-2020:14306-1"},{"ecosystem":"SUSE:Linux Enterprise Server 11 SP4-LTSS","fixed":["2.6-8.40.35.1"],"introduced":["0"],"last_affected":[],"package":"python-doc","purl":"pkg:rpm/suse/python-doc\u0026distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSS","source":"SUSE-SU-2020:14306-1"}],"prev":{"headline":"ABB System 800xA Inter process communication vulnerability - 800xA Information Management","id":"CVE-2020-8489"},"products":["n/a"],"published":"2020-01-30","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["n/a"]},"summary":"A malicious HTTP server can cause a denial of service in Python clients via catastrophic backtracking in the urllib authentication handler.","url":"https://insights.sbomify.com/CVE-2020-8492/"}