{"answers":{"affected":"3 open source packages ship an affected version, including virtualenv.","exploited":"There is no known exploitation of CVE-2026-113720 in the wild and no public exploit code.","fix":"Upgrade virtualenv to 21.14.9 or later.","what":"CVE-2026-113720 is a medium-severity vulnerability in pypa virtualenv, published on 20 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-113720 and fix it if it is affected.\n\nWhat it is: CVE-2026-113720 is a medium-severity vulnerability in pypa virtualenv, published on 20 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-113720 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- virtualenv (Bitnami): affected all versions; fixed in 21.14.9\n- virtualenv (PyPI): affected all versions; fixed in 21.14.9\n- virtualenv (PyPI): affected all versions; fixed in 21.14.9\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-2026-113720/ (Markdown: https://insights.sbomify.com/CVE-2026-113720/index.md)","id":"CVE-2026-113720","markdown":"https://insights.sbomify.com/CVE-2026-113720/index.md","name":"CVE-2026-113720","record":{"aliases":["AZL-110118","BIT-virtualenv-2026-113720","DEBIAN-CVE-2026-113720","ECHO-3ebe-71af-e577","GHSA-fc2g-4w5p-6whm","MINI-39m6-qp4h-6pcr","UBUNTU-CVE-2026-113720"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":4.4,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-732","name":"Incorrect Permission Assignment for Critical Resource"}],"description":"virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, the app-data copy seeder uses shutil.copy() to copy cached package files into later environments, causing cached source modes to override the current run's umask. A cache populated under a permissive umask can therefore produce files writable by another local account in a later traversable environment, allowing package code such as pip/__init__.py to be modified and executed by the environment owner. The attacker cannot force the earlier umask, and a private destination parent prevents access. This issue is fixed in version 21.14.9.","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: Seeded files retain permissions from an older cache","id":"CVE-2026-113720","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":null,"year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"virtualenv: Generated files can follow existing destination links","id":"CVE-2026-113721"},"packages":[{"ecosystem":"Bitnami","fixed":["21.14.9"],"introduced":["0"],"last_affected":[],"package":"virtualenv","purl":"pkg:bitnami/virtualenv","source":"BIT-virtualenv-2026-113720"},{"ecosystem":"PyPI","fixed":["21.14.9"],"introduced":["0"],"last_affected":[],"package":"virtualenv","purl":null,"source":"GHSA-fc2g-4w5p-6whm"},{"ecosystem":"PyPI","fixed":["21.14.9"],"introduced":["0"],"last_affected":[],"package":"virtualenv","purl":"pkg:pypi/virtualenv","source":"GHSA-fc2g-4w5p-6whm"}],"prev":{"headline":"virtualenv: Seed replacement does not contain metadata deletion paths","id":"CVE-2026-113719"},"products":["virtualenv"],"published":"2026-10-20","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":"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":"2026-10-21","vendors":["pypa"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-113720/"}