{"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-2021-4189 in the wild and no public exploit code.","fix":"Upgrade libpython to a fixed version for your release line: 3.6.14, 3.7.11, 3.8.9 or 3.9.3.","what":"CVE-2021-4189 is a medium-severity server-side request forgery vulnerability in Debian Debian Linux, published on 24 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-4189 and fix it if it is affected.\n\nWhat it is: CVE-2021-4189 is a medium-severity server-side request forgery vulnerability in Debian Debian Linux, published on 24 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-4189 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- libpython (Bitnami): affected from 3.6.0; fixed in 3.6.14, 3.7.11, 3.8.9, 3.9.3, 3.10.1\n- python (Bitnami): affected from 3.6.0; fixed in 3.6.14, 3.7.11, 3.8.9, 3.9.3, 3.10.1\n- python-min (Bitnami): affected from 3.6.0; fixed in 3.6.14, 3.7.11, 3.8.9, 3.9.3, 3.10.1\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-2021-4189/ (Markdown: https://insights.sbomify.com/CVE-2021-4189/index.md)","id":"CVE-2021-4189","markdown":"https://insights.sbomify.com/CVE-2021-4189/index.md","name":"CVE-2021-4189","record":{"aliases":["BIT-libpython-2021-4189","BIT-python-2021-4189","BIT-python-min-2021-4189","CLSA-2022-1649170553","CLSA-2022-1649348075","DEBIAN-CVE-2021-4189","GHSA-67xf-xphq-9mcc","UBUNTU-CVE-2021-4189","openSUSE-SU-2024:11835-1"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Python FTP client","requires_auth":"none","summary":"A malicious FTP server can trick the Python FTP client into connecting to arbitrary internal hosts, enabling port scanning and potential data access.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"ontap_select_deploy_administration_utility","vendor":"netapp"},{"product":"python","vendor":"python"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"software_collections","vendor":"redhat"}],"cvss":{"score":5.3,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-252","name":"Unchecked Return Value"}],"description":"A flaw was found in Python, specifically in the FTP (File Transfer Protocol) client library in PASV (passive) mode. The issue is how the FTP client trusts the host from the PASV response by default. This flaw allows an attacker to set up a malicious FTP server that can trick FTP clients into connecting back to a given IP address and port. This vulnerability could lead to FTP client scanning ports, which otherwise would not have been possible.","ecosystems":["Bitnami","openSUSE:Tumbleweed"],"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":"Server-side request forgery in python","id":"CVE-2021-4189","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"debian:debian_linux","products":["debian:debian_linux","netapp:ontap_select_deploy_administration_utility","python:python","redhat:enterprise_linux","redhat:software_collections"],"type":"ssrf","year":"2021"},"n_packages":4,"n_references":9,"next":{"headline":"Denial of service in Wireshark","id":"CVE-2021-4190"},"packages":[{"ecosystem":"Bitnami","fixed":["3.6.14","3.7.11","3.8.9","3.9.3","3.10.1"],"introduced":["3.6.0","3.7.0","3.8.0","3.9.0","3.10.0"],"last_affected":[],"package":"libpython","purl":"pkg:bitnami/libpython","source":"BIT-libpython-2021-4189"},{"ecosystem":"Bitnami","fixed":["3.6.14","3.7.11","3.8.9","3.9.3","3.10.1"],"introduced":["3.6.0","3.7.0","3.8.0","3.9.0","3.10.0"],"last_affected":[],"package":"python","purl":"pkg:bitnami/python","source":"BIT-python-2021-4189"},{"ecosystem":"Bitnami","fixed":["3.6.14","3.7.11","3.8.9","3.9.3","3.10.1"],"introduced":["3.6.0","3.7.0","3.8.0","3.9.0","3.10.0"],"last_affected":[],"package":"python-min","purl":"pkg:bitnami/python-min","source":"BIT-python-min-2021-4189"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["2.7.18-15.1"],"introduced":["0"],"last_affected":[],"package":"python","purl":"pkg:rpm/opensuse/python\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:11835-1"}],"prev":{"headline":"NULL Pointer Dereference in mruby/mruby","id":"CVE-2021-4188"},"products":["python"],"published":"2022-08-24","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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":"openSUSE"},{"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["n/a"]},"summary":"A malicious FTP server can trick the Python FTP client into connecting to arbitrary internal hosts, enabling port scanning and potential data access.","url":"https://insights.sbomify.com/CVE-2021-4189/"}