CVE-2026-8643: pip would treat console_scripts and gui_scripts as paths instead of file names without sanitizing the resolved

Q: How do I fix CVE-2026-8643?

pip: upgrade to 26.1.2. Exact commands for each OS are on this page.

Q: Is CVE-2026-8643 being exploited?

CVE-2026-8643 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-8643 affect?

CVE-2026-8643 affects pip. Severity is medium (CVSS 5.5). pip would treat console_scripts and gui_scripts as paths instead of file names without sanitizing the resolved absolute path to the installation directory, leading to entry points being installed outside the installation directory.

Q: How urgent is CVE-2026-8643?

Priority 25/100. No elevated risk signals yet.

Routine

MEDIUM 5.5UPGRADE

CVE-2026-8643 is a medium-severity flaw (CVSS 5.5) affecting pip. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

pip would treat console_scripts and gui_scripts as paths instead of file names without sanitizing the resolved absolute path to the installation directory, leading to entry points being installed outside the installation directory.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 75%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-06-01
Last modified	2026-09-16

Publisher (CNA): Python Software Foundation · Vendor: pypa

Last updated 2026-09-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-01 17:17 UTCPublished CVE record published
2026-09-16 13:18 UTCUpdated Record last modified

pypa pip UPGRADE

Affected: < 26.1.2

Fixed in: 26.1.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pip || rpm -q pip || pip --version

2. UPGRADE to 26.1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pip

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pip

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Advisories and coverage

Official advisories

AlmaLinux Errata: [ALSA-2026:36315] Important: python3.14-pip security update 2026-07-08

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-8643?

pip: upgrade to 26.1.2. Exact commands for each OS are on this page.

Is CVE-2026-8643 being exploited?

CVE-2026-8643 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-8643 affect?

CVE-2026-8643 affects pip. Severity is medium (CVSS 5.5). pip would treat console_scripts and gui_scripts as paths instead of file names without sanitizing the resolved absolute path to the installation directory, leading to entry points being installed outside the installation directory.

How urgent is CVE-2026-8643?

Priority 25/100. No elevated risk signals yet.

Related CVEs

CVE-2026-13346 MEDIUM 6.5 UPGRADE pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to ar

References

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