--- title: "CVE-2026-113776: virtualenv - Command Injection" description: "virtualenv 20.26.6 to < 21.14.2 contains a command injection caused by multiple placeholder substitutions in activation templates, letting attackers execute arbitrary commands when activating environments, exploit requires attacker-controlled path or prompt." url: https://panop.io/threat-heartbeat/CVE-2026-113776/ --- # CVE-2026-113776 virtualenv - Command Injection virtualenv 20.26.6 to < 21.14.2 contains a command injection caused by multiple placeholder substitutions in activation templates, letting attackers execute arbitrary commands when activating environments, exploit requires attacker-controlled path or prompt. CVSS base score 7.8 /10 High CISA KEV Not listed Public exploit None known [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-113776) ## Details Type Command Injection Impact Remote Code Execution CVSS vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Published 20 October 2026 Updated 21 October 2026 Weakness [CWE-78](https://cwe.mitre.org/data/definitions/78.html) ## Vendor fix Update to version 21.14.2 or later. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-113776](https://nvd.nist.gov/vuln/detail/CVE-2026-113776) - [https://github.com/pypa/virtualenv/commit/602b26623a724827ff171bf11fef4ad186d01f74](https://github.com/pypa/virtualenv/commit/602b26623a724827ff171bf11fef4ad186d01f74) - [https://github.com/pypa/virtualenv/releases/tag/21.14.2](https://github.com/pypa/virtualenv/releases/tag/21.14.2) - [https://github.com/pypa/virtualenv/security/advisories/GHSA-8rjx-v5ww-45pp](https://github.com/pypa/virtualenv/security/advisories/GHSA-8rjx-v5ww-45pp) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)