SecuriTricks - CVE-2026-42089

Description

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.

Product(s) Impacted

Vendor	Product	Versions
Yeoman	Yeoman	2.9.0-6.0.0, 6.0.0

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-829

Inclusion of Functionality from Untrusted Control Sphere

The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	yeoman	yeoman	2.9.0-6.0.0	/	/	/	/	/	/	/
a	yeoman	yeoman	6.0.0	/	/	/	/	/	/	/

References

https://github.com/yeoman/environment/commit/78d2af7e60294784b8a8b3b3b5099c6874b6a1fa

https://github.com/yeoman/environment/pull/753

https://github.com/yeoman/environment/security/advisories/GHSA-vv9j-gjw2-j8wp

CVSS Score

8.6 / 10

CVSS Data - 3.1

Attack Vector: LOCAL
Attack Complexity: LOW
Privileges Required: NONE
Scope: CHANGED
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

View Vector String

Timeline

Published: June 16, 2026, 5:16 p.m.
Last Modified: June 16, 2026, 5:35 p.m.

Status : Deferred

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-42089