{"answers":{"affected":"4 open source packages ship an affected version, including virtualenv.","exploited":"There is no known exploitation of CVE-2026-102937 in the wild and no public exploit code.","fix":"Upgrade virtualenv to 21.7.12 or later.","what":"CVE-2026-102937 is a high-severity command injection vulnerability in pypa virtualenv, published on 29 Sep 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-2026-102937 and fix it if it is affected.\n\nWhat it is: CVE-2026-102937 is a high-severity command injection vulnerability in pypa virtualenv, published on 29 Sep 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-2026-102937 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- virtualenv (Bitnami): affected all versions; fixed in 21.7.12\n- virtualenv (PyPI): affected all versions; fixed in 21.7.12\n- virtualenv (PyPI): affected all versions; fixed in 21.7.12\n- virtualenv (PyPI): affected all versions; fixed in 21.7.12\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-2026-102937/ (Markdown: https://insights.sbomify.com/CVE-2026-102937/index.md)","id":"CVE-2026-102937","markdown":"https://insights.sbomify.com/CVE-2026-102937/index.md","name":"CVE-2026-102937","record":{"aliases":["AZL-105648","AZL-105666","BIT-virtualenv-2026-102937","DEBIAN-CVE-2026-102937","ECHO-4b3e-29b9-2f98","GHSA-x78j-v8h9-3j2q","MINI-hg4g-m4p9-9rpj","MINI-x5r6-266h-hwc3","PYSEC-2026-4014","ROOT-APP-PYPI-CVE-2026-102937","UBUNTU-CVE-2026-102937"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Python virtualenv tool","requires_auth":"none","summary":"Attackers can execute arbitrary commands on Windows by injecting malicious syntax into the virtual environment prompt during activation.","user_interaction":"required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.3,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"virtualenv is a tool for creating isolated virtual python environments. Prior to 21.7.12, BatchActivator.quote() returns prompt text unchanged before activate.bat inserts it into a cmd.exe set \"VAR=value\" statement. An attacker who influences --prompt, VIRTUALENV_PROMPT, or the corresponding configuration value can include a double quote that closes the assignment and leaves following cmd.exe operators as executable syntax. When a user activates the generated Windows environment, the injected commands run with that user's privileges. This issue is fixed in version 21.7.12.","ecosystems":["Bitnami","PyPI"],"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":"virtualenv: Command injection via --prompt in activate.bat (batch activator)","id":"CVE-2026-102937","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":4,"n_references":4,"next":{"headline":"virtualenv writes prompt values into pyvenv.cfg without sanitizing line boundaries, allowing configuration injection","id":"CVE-2026-102938"},"packages":[{"ecosystem":"Bitnami","fixed":["21.7.12"],"introduced":["0"],"last_affected":[],"package":"virtualenv","purl":"pkg:bitnami/virtualenv","source":"BIT-virtualenv-2026-102937"},{"ecosystem":"PyPI","fixed":["21.7.12"],"introduced":["0"],"last_affected":[],"package":"virtualenv","purl":null,"source":"GHSA-x78j-v8h9-3j2q"},{"ecosystem":"PyPI","fixed":["21.7.12"],"introduced":["0"],"last_affected":[],"package":"virtualenv","purl":"pkg:pypi/virtualenv","source":"GHSA-x78j-v8h9-3j2q"},{"ecosystem":"PyPI","fixed":["21.7.12"],"introduced":["0"],"last_affected":[],"package":"virtualenv","purl":"pkg:pypi/virtualenv","source":"PYSEC-2026-4014"}],"prev":{"headline":"virtualenv: Downloaded seed wheels (pip/setuptools) are not integrity-checked before use","id":"CVE-2026-102930"},"products":["virtualenv"],"published":"2026-09-29","related":[],"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":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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":"total"},"state":"PUBLISHED","updated":"2026-10-02","vendors":["pypa"]},"summary":"Attackers can execute arbitrary commands on Windows by injecting malicious syntax into the virtual environment prompt during activation.","url":"https://insights.sbomify.com/CVE-2026-102937/"}