Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-85265.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-85265
Upstream
Published
2026-04-27T15:16:20Z
Modified
2026-08-30T05:26:50Z
Summary
CVE-2026-6357 affecting package python-virtualenv for versions less than 20.36.1-4
Details

pip prior to version 26.1 would run self-update check functionality after installing wheel files which required importing well-known Python modules names. These module imports were intentionally deferred to increase startup time of the pip CLI. The patch changes self-update functionality to run before wheels are installed to prevent newly-installed modules from being imported shortly after the installation of a wheel package. Users should still review package contents prior to installation.

References

Affected packages

Azure Linux:3 / python-virtualenv

Package

Name
python-virtualenv
Purl
pkg:rpm/azure-linux/python-virtualenv

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
20.36.1-4

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-85265.json"