VDB-371360 · CVE-2026-42089 · GHSA-vv9j-gjw2-j8wp

yeoman environment up to 6.0.0 installLocalGenerators inclusion of functionality from untrusted control sphere

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.8	$0-$5k	1.94+

Summaryinfo

A vulnerability labeled as problematic has been found in yeoman environment up to 6.0.0. Affected by this vulnerability is the function installLocalGenerators. Such manipulation leads to inclusion of functionality from untrusted control sphere. This vulnerability is referenced as CVE-2026-42089. The attack can only be performed from a local environment. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in yeoman environment up to 6.0.0. Affected by this issue is the function installLocalGenerators. The manipulation with an unknown input leads to a inclusion of functionality from untrusted control sphere vulnerability. Using CWE to declare the problem leads to CWE-829. The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Yeoman Environment provides an API to discover, create, and run generators, and to configure where and how a generator is resolved. Versions 2.9.0 through 6.0.0 install missing local generator packages from caller-supplied package names without user confirmation. In downstream consumers that pass attacker-controlled project configuration into this path, this can result in arbitrary package installation and code execution during CLI bootstrap. The vulnerable method is installLocalGenerators(), which calls repository.install() directly without prompting the user. This issue has been fixed in version 6.0.0.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-42089 since 04/23/2026. The exploitation is known to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available.

Upgrading to version 6.0.1 eliminates this vulnerability. Applying the patch 78d2af7e60294784b8a8b3b3b5099c6874b6a1fa is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-37131). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

yeoman

Name

environment

Version

License

open-source

Website

Product: https://github.com/yeoman/environment/

CPE 2.3info

🔒

CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.6
CNA Vector (GitHub_M): 🔒

CVSSv2info

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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: Inclusion of functionality from untrusted control sphere
CWE: CWE-829
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: environment 6.0.1
Patch: 78d2af7e60294784b8a8b3b3b5099c6874b6a1fa

Timelineinfo

04/23/2026 CVE reserved
06/16/2026 +54 days Advisory disclosed
06/16/2026 +0 days VulDB entry created
06/16/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-vv9j-gjw2-j8wp
Status: Confirmed

CVE: CVE-2026-42089 (🔒)
GCVE (CVE): GCVE-0-2026-42089
GCVE (VulDB): GCVE-100-371360
EUVD: 🔒

Entryinfo

Created: 06/16/2026 19:51
Updated: 06/16/2026 21:08
Changes: 06/16/2026 19:51 (66), 06/16/2026 21:08 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.