VDB-359811 · CVE-2026-6357 · Nessus 310626

pip up to 26.0 Self-update Check Local Privilege Escalation

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4.0	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in pip up to 26.0. Affected by this issue is some unknown functionality of the component Self-update Check. Performing a manipulation results in Local Privilege Escalation. This vulnerability is identified as CVE-2026-6357. The attack is only possible with local access. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in pip up to 26.0. This affects an unknown code of the component Self-update Check. The manipulation with an unknown input leads to a local privilege escalation vulnerability. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-6357 since 04/15/2026. The exploitability is told to be easy. Attacking locally is a requirement. The exploitation needs additional levels of successful authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 310626 (Linux Distros Unpatched Vulnerability : CVE-2026-6357), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 26.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (310626). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

26.0

CPE 2.3info

🔒

CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.2
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Local Privilege Escalation
CWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 310626
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-6357

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: pip 26.1

Timelineinfo

04/15/2026 CVE reserved
04/27/2026 +12 days Advisory disclosed
04/27/2026 +0 days VulDB entry created
04/28/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-6357 (🔒)
GCVE (CVE): GCVE-0-2026-6357
GCVE (VulDB): GCVE-100-359811

Entryinfo

Created: 04/27/2026 17:12
Updated: 04/28/2026 16:14
Changes: 04/27/2026 17:12 (64), 04/28/2026 16:14 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.