CVE-2026-6357
pip Vulnerable to Inclusion of Functionality from Untrusted Control Sphere
EPSS 0.02%
Description
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.
How to fix CVE-2026-6357
To remediate CVE-2026-6357, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 26.1 or later
Is CVE-2026-6357 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- from 0, < 26.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |