CVE-2026-113713

What it is

virtualenv is a tool for creating isolated virtual python environments. From 21.14.8 until 21.14.10, the app-data seeder can leave an environment linked to temporary package files that virtualenv deletes when creation finishes. The environment-variable and configuration-file forms of symlink_app_data can enable this state even though the command-line flag is disabled for temporary app-data. The resulting environment depends on a cache pathname that its owner no longer controls. This issue is fixed in version 21.14.10.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account, but needs a user to act. High risk of data tampering.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-10-20 19:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-27 14:16 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.2% in the next 30 days (EPSS).
• Severity: 4.4 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2026-10-20 19:17 UTC

Last modified

2026-10-27 14:16 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-377

Record status

Undergoing Analysis

Attack profile CVSS 4.0 · 4.4

Attack vector

Local

Complexity

High

Attack requirements

Present

Privileges needed

Low

User interaction

Passive

Confidentiality

Low

Integrity

High

Availability

Low

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-113713.md and follow it. Check whether this project is affected by CVE-2026-113713. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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