{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-4519 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-4519 is a high-severity command injection vulnerability in Python Python, published on 20 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-4519 and fix it if it is affected.\n\nWhat it is: CVE-2026-4519 is a high-severity command injection vulnerability in Python Python, published on 20 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-4519 in the wild and no public exploit code.\n\nAffected product: Python Python. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-4519/ (Markdown: https://insights.sbomify.com/CVE-2026-4519/index.md)","id":"CVE-2026-4519","markdown":"https://insights.sbomify.com/CVE-2026-4519/index.md","name":"CVE-2026-4519","record":{"aliases":["ALPINE-CVE-2026-4519","ALSA-2026:6256","ALSA-2026:6281","ALSA-2026:6283","ALSA-2026:6285","ALSA-2026:6286","ALSA-2026:6473","ALSA-2026:6766","AZL-109713","AZL-80490","BELL-CVE-2026-4519","CLSA-2026-1775654402","CLSA-2026-1776169648","CLSA-2026-1777456062","CLSA-2026-1777946712","CLSA-2026-1777946871","CLSA-2026-1778000974","CLSA-2026-1778002076","CLSA-2026-1778002331","CLSA-2026-1778015238","DEBIAN-CVE-2026-4519","ECHO-d547-7bae-8442","GHSA-rm92-fj5q-mpj5","MINI-3pq4-3wq9-67fq","MINI-4fv2-9g59-92c8","MINI-89gq-r9gv-h3x4","MINI-mm75-g8vh-j5r4","MINI-vcpx-376x-9c82","PSF-2026-14","RHSA-2026:10101","RHSA-2026:10102","RHSA-2026:10111","RHSA-2026:6016","RHSA-2026:6035","RHSA-2026:6256","RHSA-2026:6281","RHSA-2026:6283","RHSA-2026:6285","RHSA-2026:6286","RHSA-2026:6473","RHSA-2026:6766","RHSA-2026:7010","RHSA-2026:7244","RHSA-2026:9042","RHSA-2026:9260","RHSA-2026:9261","RHSA-2026:9262","RHSA-2026:9289","RHSA-2026:9354","RHSA-2026:9386","RHSA-2026:9387","RHSA-2026:9591","RHSA-2026:9614","RHSA-2026:9621","RHSA-2026:9705","RHSA-2026:9745","RLSA-2026:6281","RLSA-2026:6283","RLSA-2026:6285","RLSA-2026:6286","RLSA-2026:6473","RLSA-2026:6766","ROOT-OS-DEBIAN-11-CVE-2026-4519","UBUNTU-CVE-2026-4519"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Python standard library","requires_auth":"none","summary":"Attackers can inject command-line options into web browsers via webbrowser.open() by using URLs with leading dashes, potentially executing arbitrary commands.","user_interaction":"required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"PSF","cpe":[{"product":"python","vendor":"python"}],"cvss":{"score":7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-88","name":"Improper Neutralization of Argument Delimiters in a Command"},{"id":"CWE-20","name":"Improper Input Validation"}],"description":"The webbrowser.open() API would accept leading dashes in the URL which \ncould be handled as command line options for certain web browsers. New \nbehavior rejects leading dashes. Users are recommended to sanitize URLs \nprior to passing to webbrowser.open().","ecosystems":["AlmaLinux:10","AlmaLinux:8","AlmaLinux:9","Red Hat:enterprise_linux:10.1","Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:8::baseos","Red Hat:enterprise_linux:8::crb","Red Hat:enterprise_linux:9::appstream","Red Hat:enterprise_linux:9::baseos","Red Hat:enterprise_linux:9::crb","Red Hat:enterprise_linux_eus:10.0","Red Hat:hummingbird:1","Red Hat:rhel_aus:8.2::appstream","Red Hat:rhel_aus:8.2::baseos","Red Hat:rhel_aus:8.4::appstream","Red Hat:rhel_aus:8.4::baseos","Red Hat:rhel_aus:8.6::appstream","Red Hat:rhel_aus:8.6::baseos","Red Hat:rhel_e4s:8.6::appstream","Red Hat:rhel_e4s:8.6::baseos","Red Hat:rhel_e4s:8.8::appstream","Red Hat:rhel_e4s:8.8::baseos","Red Hat:rhel_e4s:9.0::appstream","Red Hat:rhel_e4s:9.0::baseos","Red Hat:rhel_e4s:9.2::appstream","Red Hat:rhel_e4s:9.2::baseos","Red Hat:rhel_els:6","Red Hat:rhel_els:7","Red Hat:rhel_eus:9.4::appstream","Red Hat:rhel_eus:9.4::baseos","Red Hat:rhel_eus:9.4::crb","Red Hat:rhel_eus:9.6::appstream","Red Hat:rhel_eus:9.6::baseos","Red Hat:rhel_eus:9.6::crb","Red Hat:rhel_eus_long_life:8.4::appstream","Red Hat:rhel_eus_long_life:8.4::baseos","Red Hat:rhel_tus:8.6::appstream","Red Hat:rhel_tus:8.6::baseos","Red Hat:rhel_tus:8.8::appstream","Red Hat:rhel_tus:8.8::baseos","Rocky Linux:8","Rocky Linux:9"],"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":"webbrowser.open() allows leading dashes in URLs","id":"CVE-2026-4519","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"python:python","products":["python:python"],"type":"command_injection","year":"2026"},"n_packages":434,"n_references":15,"next":{"headline":"Missing authentication for critical function vulnerability in HYPR Passwordless on Windows allows Credentials Interception.","id":"CVE-2026-4522"},"packages":[{"ecosystem":"AlmaLinux:10","fixed":["3.12.12-3.el10_1.2"],"introduced":["0"],"last_affected":[],"package":"python-unversioned-command","purl":"pkg:rpm/almalinux/python-unversioned-command","source":"ALSA-2026:6256"},{"ecosystem":"AlmaLinux:8","fixed":["3.6.8-75.el8_10.alma.1"],"introduced":["0"],"last_affected":[],"package":"platform-python","purl":"pkg:rpm/almalinux/platform-python","source":"ALSA-2026:6473"},{"ecosystem":"AlmaLinux:8","fixed":["3.6.8-75.el8_10.alma.1"],"introduced":["0"],"last_affected":[],"package":"platform-python-debug","purl":"pkg:rpm/almalinux/platform-python-debug","source":"ALSA-2026:6473"},{"ecosystem":"AlmaLinux:8","fixed":["3.6.8-75.el8_10.alma.1"],"introduced":["0"],"last_affected":[],"package":"platform-python-devel","purl":"pkg:rpm/almalinux/platform-python-devel","source":"ALSA-2026:6473"},{"ecosystem":"AlmaLinux:8","fixed":["3.6.8-75.el8_10.alma.1"],"introduced":["0"],"last_affected":[],"package":"python3-idle","purl":"pkg:rpm/almalinux/python3-idle","source":"ALSA-2026:6473"},{"ecosystem":"AlmaLinux:8","fixed":["3.6.8-75.el8_10.alma.1"],"introduced":["0"],"last_affected":[],"package":"python3-libs","purl":"pkg:rpm/almalinux/python3-libs","source":"ALSA-2026:6473"},{"ecosystem":"AlmaLinux:8","fixed":["3.6.8-75.el8_10.alma.1"],"introduced":["0"],"last_affected":[],"package":"python3-test","purl":"pkg:rpm/almalinux/python3-test","source":"ALSA-2026:6473"},{"ecosystem":"AlmaLinux:8","fixed":["3.6.8-75.el8_10.alma.1"],"introduced":["0"],"last_affected":[],"package":"python3-tkinter","purl":"pkg:rpm/almalinux/python3-tkinter","source":"ALSA-2026:6473"},{"ecosystem":"AlmaLinux:8","fixed":["3.11.13-6.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.11","purl":"pkg:rpm/almalinux/python3.11","source":"ALSA-2026:6281"},{"ecosystem":"AlmaLinux:8","fixed":["3.11.13-6.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.11-debug","purl":"pkg:rpm/almalinux/python3.11-debug","source":"ALSA-2026:6281"},{"ecosystem":"AlmaLinux:8","fixed":["3.11.13-6.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.11-devel","purl":"pkg:rpm/almalinux/python3.11-devel","source":"ALSA-2026:6281"},{"ecosystem":"AlmaLinux:8","fixed":["3.11.13-6.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.11-idle","purl":"pkg:rpm/almalinux/python3.11-idle","source":"ALSA-2026:6281"},{"ecosystem":"AlmaLinux:8","fixed":["3.11.13-6.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.11-libs","purl":"pkg:rpm/almalinux/python3.11-libs","source":"ALSA-2026:6281"},{"ecosystem":"AlmaLinux:8","fixed":["3.11.13-6.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.11-rpm-macros","purl":"pkg:rpm/almalinux/python3.11-rpm-macros","source":"ALSA-2026:6281"},{"ecosystem":"AlmaLinux:8","fixed":["3.11.13-6.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.11-test","purl":"pkg:rpm/almalinux/python3.11-test","source":"ALSA-2026:6281"},{"ecosystem":"AlmaLinux:8","fixed":["3.11.13-6.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.11-tkinter","purl":"pkg:rpm/almalinux/python3.11-tkinter","source":"ALSA-2026:6281"},{"ecosystem":"AlmaLinux:8","fixed":["3.12.12-4.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.12","purl":"pkg:rpm/almalinux/python3.12","source":"ALSA-2026:6283"},{"ecosystem":"AlmaLinux:8","fixed":["3.12.12-4.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.12-debug","purl":"pkg:rpm/almalinux/python3.12-debug","source":"ALSA-2026:6283"},{"ecosystem":"AlmaLinux:8","fixed":["3.12.12-4.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.12-devel","purl":"pkg:rpm/almalinux/python3.12-devel","source":"ALSA-2026:6283"},{"ecosystem":"AlmaLinux:8","fixed":["3.12.12-4.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.12-idle","purl":"pkg:rpm/almalinux/python3.12-idle","source":"ALSA-2026:6283"},{"ecosystem":"AlmaLinux:8","fixed":["3.12.12-4.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.12-libs","purl":"pkg:rpm/almalinux/python3.12-libs","source":"ALSA-2026:6283"},{"ecosystem":"AlmaLinux:8","fixed":["3.12.12-4.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.12-rpm-macros","purl":"pkg:rpm/almalinux/python3.12-rpm-macros","source":"ALSA-2026:6283"},{"ecosystem":"AlmaLinux:8","fixed":["3.12.12-4.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.12-test","purl":"pkg:rpm/almalinux/python3.12-test","source":"ALSA-2026:6283"},{"ecosystem":"AlmaLinux:8","fixed":["3.12.12-4.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3.12-tkinter","purl":"pkg:rpm/almalinux/python3.12-tkinter","source":"ALSA-2026:6283"},{"ecosystem":"AlmaLinux:9","fixed":["3.9.25-3.el9_7.2"],"introduced":["0"],"last_affected":[],"package":"python-unversioned-command","purl":"pkg:rpm/almalinux/python-unversioned-command","source":"ALSA-2026:6766"},{"ecosystem":"AlmaLinux:9","fixed":["3.9.25-3.el9_7.2"],"introduced":["0"],"last_affected":[],"package":"python3","purl":"pkg:rpm/almalinux/python3","source":"ALSA-2026:6766"},{"ecosystem":"AlmaLinux:9","fixed":["3.9.25-3.el9_7.2"],"introduced":["0"],"last_affected":[],"package":"python3-debug","purl":"pkg:rpm/almalinux/python3-debug","source":"ALSA-2026:6766"},{"ecosystem":"AlmaLinux:9","fixed":["3.9.25-3.el9_7.2"],"introduced":["0"],"last_affected":[],"package":"python3-devel","purl":"pkg:rpm/almalinux/python3-devel","source":"ALSA-2026:6766"},{"ecosystem":"AlmaLinux:9","fixed":["3.9.25-3.el9_7.2"],"introduced":["0"],"last_affected":[],"package":"python3-idle","purl":"pkg:rpm/almalinux/python3-idle","source":"ALSA-2026:6766"},{"ecosystem":"AlmaLinux:9","fixed":["3.9.25-3.el9_7.2"],"introduced":["0"],"last_affected":[],"package":"python3-libs","purl":"pkg:rpm/almalinux/python3-libs","source":"ALSA-2026:6766"},{"ecosystem":"AlmaLinux:9","fixed":["3.9.25-3.el9_7.2"],"introduced":["0"],"last_affected":[],"package":"python3-test","purl":"pkg:rpm/almalinux/python3-test","source":"ALSA-2026:6766"},{"ecosystem":"AlmaLinux:9","fixed":["3.9.25-3.el9_7.2"],"introduced":["0"],"last_affected":[],"package":"python3-tkinter","purl":"pkg:rpm/almalinux/python3-tkinter","source":"ALSA-2026:6766"},{"ecosystem":"AlmaLinux:9","fixed":["3.11.13-5.2.el9_7"],"introduced":["0"],"last_affected":[],"package":"python3.11","purl":"pkg:rpm/almalinux/python3.11","source":"ALSA-2026:6286"},{"ecosystem":"AlmaLinux:9","fixed":["3.11.13-5.2.el9_7"],"introduced":["0"],"last_affected":[],"package":"python3.11-debug","purl":"pkg:rpm/almalinux/python3.11-debug","source":"ALSA-2026:6286"},{"ecosystem":"AlmaLinux:9","fixed":["3.11.13-5.2.el9_7"],"introduced":["0"],"last_affected":[],"package":"python3.11-devel","purl":"pkg:rpm/almalinux/python3.11-devel","source":"ALSA-2026:6286"},{"ecosystem":"AlmaLinux:9","fixed":["3.11.13-5.2.el9_7"],"introduced":["0"],"last_affected":[],"package":"python3.11-idle","purl":"pkg:rpm/almalinux/python3.11-idle","source":"ALSA-2026:6286"},{"ecosystem":"AlmaLinux:9","fixed":["3.11.13-5.2.el9_7"],"introduced":["0"],"last_affected":[],"package":"python3.11-libs","purl":"pkg:rpm/almalinux/python3.11-libs","source":"ALSA-2026:6286"},{"ecosystem":"AlmaLinux:9","fixed":["3.11.13-5.2.el9_7"],"introduced":["0"],"last_affected":[],"package":"python3.11-test","purl":"pkg:rpm/almalinux/python3.11-test","source":"ALSA-2026:6286"},{"ecosystem":"AlmaLinux:9","fixed":["3.11.13-5.2.el9_7"],"introduced":["0"],"last_affected":[],"package":"python3.11-tkinter","purl":"pkg:rpm/almalinux/python3.11-tkinter","source":"ALSA-2026:6286"},{"ecosystem":"AlmaLinux:9","fixed":["3.12.12-4.el9_7.2"],"introduced":["0"],"last_affected":[],"package":"python3.12","purl":"pkg:rpm/almalinux/python3.12","source":"ALSA-2026:6285"}],"prev":{"headline":"Foundation Agents MetaGPT DataInterpreter write_analysis_code.py injection","id":"CVE-2026-4516"},"products":["CPython"],"published":"2026-03-20","related":[{"cvss_score":10,"headline":"Integer overflow in n/a","id":"CVE-2008-5031","kev_date_added":null,"published":"2008-11-10"},{"cvss_score":9.8,"headline":"Path traversal in n/a","id":"CVE-2014-4650","kev_date_added":null,"published":"2020-02-20"},{"cvss_score":9.8,"headline":"Integer overflow in n/a","id":"CVE-2016-5636","kev_date_added":null,"published":"2016-09-02"},{"cvss_score":9.8,"headline":"Path traversal in n/a","id":"CVE-2007-4559","kev_date_added":null,"published":"2007-08-28"},{"cvss_score":8.8,"headline":"Command injection in n/a","id":"CVE-2017-17522","kev_date_added":null,"published":"2017-12-14"},{"cvss_score":8.7,"headline":"Incremental HTMLParser feed() allows CPU-exhaustion DoS via repeated unterminated markup declarations","id":"CVE-2026-15308","kev_date_added":null,"published":"2026-07-09"},{"cvss_score":7.8,"headline":"Privilege escalation in n/a","id":"CVE-2019-13404","kev_date_added":null,"published":"2019-07-08"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"total"},"state":"PUBLISHED","updated":"2026-08-13","vendors":["Python Software Foundation"]},"summary":"Attackers can inject command-line options into web browsers via webbrowser.open() by using URLs with leading dashes, potentially executing arbitrary commands.","url":"https://insights.sbomify.com/CVE-2026-4519/"}