CVE-2026-113714
Description
A flaw was found in virtualenv. The utility writes downloaded software packages directly into its reusable cache before completing integrity verification checks. An attacker controlling a package repository can exploit this flaw to retain rejected or manipulated packages in the cache, resulting in the installation of unverified software.
Statement
This vulnerability is rated as Moderate severity because successful exploitation requires specific preconditions, including user interaction or reliance on a compromised or malicious package index. When configured to retrieve seed wheels over the network, virtualenv prematurely stores downloaded archives in its shared cache before completing cryptographic verification, potentially allowing rejected packages to persist for subsequent environment creation. Within Red Hat products such as OpenShift AI and Ansible Automation Platform, environments are commonly constructed within isolated containers utilizing trusted mirrors, significantly mitigating the likelihood of untrusted index poisoning in standard deployments.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5 | N/A | N/A |
| Attack Vector | Network | N/A | N/A |
| Attack Complexity | High | N/A | N/A |
| Privileges Required | None | N/A | N/A |
| User Interaction | Required | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | Low | N/A | N/A |
| Integrity Impact | Low | N/A | N/A |
| Availability Impact | Low | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Understanding the Weakness (CWE)
Integrity,Availability,Confidentiality,Other
Technical Impact: Execute Unauthorized Code or Commands; Alter Execution Logic; Other
An attacker can execute malicious code by compromising the host server, performing DNS spoofing, or modifying the code in transit. Executing untrusted code could compromise the control flow of the program. The untrusted code could execute attacker-controlled commands, read or modify sensitive resources, or prevent the software from functioning correctly for legitimate users.
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
