How severe is CVE-2026-8643?

CVE-2026-8643 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-8643 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-8643?

CVE-2026-8643 affects Pypa Pip. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-8643?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-8643 have an EU (EUVD) identifier?

Yes. CVE-2026-8643 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33682.

When was CVE-2026-8643 published?

CVE-2026-8643 was published on 2026-06-01 and last updated on 2026-09-16.

CVE-2026-8643

CVE-2026-8643 is a medium-severity vulnerability in Pypa Pip with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v4: 4.1
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33682
Weakness: CWE-22
Affected product: Pypa Pip
Published: 2026-06-01
Last modified: 2026-09-16

Description

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.

Frequently asked questions

What is CVE-2026-8643?: 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 severe is CVE-2026-8643?: CVE-2026-8643 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-8643 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-8643?: CVE-2026-8643 affects Pypa Pip. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-8643?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-8643 have an EU (EUVD) identifier?: Yes. CVE-2026-8643 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33682.
When was CVE-2026-8643 published?: CVE-2026-8643 was published on 2026-06-01 and last updated on 2026-09-16.

References

Affected products (1)

cpe:2.3:a:pypa:pip:*:*:*:*:*:*:*:*

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