{"answers":{"affected":"3 open source packages ship an affected version, including virtualenv.","exploited":"There is no known exploitation of CVE-2026-113726 in the wild and no public exploit code.","fix":"Upgrade virtualenv to 21.14.4 or later.","what":"CVE-2026-113726 is a high-severity vulnerability in pypa virtualenv, published on 20 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-113726 and fix it if it is affected.\n\nWhat it is: CVE-2026-113726 is a high-severity vulnerability in pypa virtualenv, published on 20 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-113726 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- virtualenv (Bitnami): affected all versions; fixed in 21.14.4\n- virtualenv (PyPI): affected all versions; fixed in 21.14.4\n- virtualenv (PyPI): affected all versions; fixed in 21.14.4\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-2026-113726/ (Markdown: https://insights.sbomify.com/CVE-2026-113726/index.md)","id":"CVE-2026-113726","markdown":"https://insights.sbomify.com/CVE-2026-113726/index.md","name":"CVE-2026-113726","record":{"aliases":["AZL-110076","AZL-110100","BIT-virtualenv-2026-113726","DEBIAN-CVE-2026-113726","ECHO-bef4-55b6-f81b","GHSA-5vjq-rrrf-7h2q","MINI-c7hj-g37h-88m6","ROOT-APP-PYPI-CVE-2026-113726","UBUNTU-CVE-2026-113726"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"},{"id":"CWE-116","name":"Improper Encoding or Escaping of Output"}],"description":"virtualenv is a tool for creating isolated virtual python environments. Prior to 21.13.0, the bash activate script that zsh also sources leaves the environment name unescaped; from 21.13.0 until 21.14.4, it escapes backslashes, dollar signs, and backticks only when BASH_VERSION is set, so zsh receives the raw value. The script assigns that value to PS1. In zsh with PROMPT_SUBST, an attacker-influenced environment directory, --prompt, or VIRTUALENV_PROMPT value containing command, parameter, or arithmetic expansion syntax can therefore execute commands in the user's shell each time the prompt is drawn. A percent sign is separately interpreted as a zsh prompt escape but does not by itself execute commands. Plain zsh with PROMPT_SUBST disabled and bash are not affected by this mechanism. This issue is fixed in version 21.14.4.","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 activate runs commands from the environment name in zsh with PROMPT_SUBST","id":"CVE-2026-113726","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":null,"year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"OpenChoreo: Authorization bypass on WorkflowRun update allows cross-project takeover of workflow runs","id":"CVE-2026-113727"},"packages":[{"ecosystem":"Bitnami","fixed":["21.14.4"],"introduced":["0"],"last_affected":[],"package":"virtualenv","purl":"pkg:bitnami/virtualenv","source":"BIT-virtualenv-2026-113726"},{"ecosystem":"PyPI","fixed":["21.14.4"],"introduced":["0"],"last_affected":[],"package":"virtualenv","purl":null,"source":"GHSA-5vjq-rrrf-7h2q"},{"ecosystem":"PyPI","fixed":["21.14.4"],"introduced":["0"],"last_affected":[],"package":"virtualenv","purl":"pkg:pypi/virtualenv","source":"GHSA-5vjq-rrrf-7h2q"}],"prev":{"headline":"virtualenv bash activate runs commands from an environment name with a backslash before $","id":"CVE-2026-113725"},"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":"total"},"state":"PUBLISHED","updated":"2026-10-27","vendors":["pypa"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-113726/"}