yeoman-environment Vulnerable to Arbitrary Package Installation without User Confirmation
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.6epss 0.2%
from disclosure to weapon10 days
Published on NVDJun 16
1st PoC+10d
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Affected products
yeoman · environmentpublic PoCs found — 1
githubgithub.com/0xmrma/CVE-2026-42089★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.