CVE-2026-42089
📛 CVE Title
(no title)
Description
yeoman-environment Vulnerable to Arbitrary Package Installation without User Confirmation
Description (MITRE) cveawg.mitre.org
Pulled from cveawg.mitre.org/api/cve/CVE-2026-42089 on 2026-07-27. Shown when MITRE's text differs from the cvelistV5 mirror.
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.
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- high
- CVSS score
- 8.6 / 10
- CVSS vector
AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H- Effective score
- 8.6 / 10 HIGH source: CNA overview
- CWE(s)
- —
- Reserved
- —
- Published
- —
- Last updated
- —
- Source
- https://www.tenable.com/cve/CVE-2026-42089
- Linked Threat
- CVE-2026-42089 — CVE-2026-42089
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-06-16 17:16:40 UTC
- NVD last modified
- 2026-06-17 10:47:25 UTC
- NVD CVSS v3.1
- 8.6 / 10 HIGH source: security-advisories@github.com
- NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H- Exploitability subscore
- 1.8 / 10
- Impact subscore
- 6.0 / 10
- EPSS score
- 0.0017 (probability of exploitation in next 30 days)
- EPSS percentile
- 6.89% vs all CVEs — higher = more likely to be exploited, as of 2026-07-26
NVD-assigned CWE(s):
CWE-829
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-07-27 12:03 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-37131 - Assigner
- GitHub_M
- Published
- Jun 16, 2026, 4:15:04 PM
- Updated
- Jun 16, 2026, 5:24:07 PM
- EUVD base score (CVSS 3.1)
-
8.6 / 10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H - EUVD-reported EPSS
- 0.1700
- Vendors
- yeoman
- Products
-
environment (2.9.0, < 6.0.1)
- Aliases
-
GHSA-vv9j-gjw2-j8wp
ENISA 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.
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
MITRE references (3) cveawg.mitre.org
Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.
- https://github.com/yeoman/environment/commit/78d2af7e60294784b8a8b3b3b5099c6874b6a1fa x_refsource_MISC
- https://github.com/yeoman/environment/pull/753 x_refsource_MISC
- https://github.com/yeoman/environment/security/advisories/GHSA-vv9j-gjw2-j8wp x_refsource_CONFIRM
Web references (2)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://nvd.nist.gov/vuln/detail/CVE-2026-42089 tenable:nvd.nist.gov
- https://www.cve.org/CVERecord?id=CVE-2026-42089 tenable:www.cve.org
NVD-tagged references (3)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://github.com/yeoman/environment/commit/78d2af7e60294784b8a8b3b3b5099c6874b6a1fa security-advisories@github.com
- https://github.com/yeoman/environment/pull/753 security-advisories@github.com
- https://github.com/yeoman/environment/security/advisories/GHSA-vv9j-gjw2-j8wp security-advisories@github.com
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:cvetodo.com
How do I fix CVE-2026-42089 ? To remediate CVE-2026-42089 : Check yeoman's security advisories for official patches and updates. Update environment to the latest patched version. Review the references section below for vendor advisories and mitigation guidance. What is the CVSS score of CVE-2026-42089 ?
2026-06-19 02:26 UTC -
web:cybersecuritynews.com
Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.
2026-06-19 02:26 UTC -
web:nvd.nist.gov
Description Improper link resolution before file access ('link following') in Winlogon allows an authorized attacker to elevate privileges locally.
2026-06-19 02:26 UTC -
web:orca.security
Critical Netlogon RCE CVE - 2026 -41089 puts Windows Server domain controllers at risk. Use Orca Security to detect unpatched instances and protect your AD.
2026-06-19 02:26 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-06-19 02:26 UTC -
web:securityarsenal.com
A critical CVSS 9.8 flaw in Windows Netlogon allows SYSTEM-level code execution on Domain Controllers. Immediate patching is required.
2026-06-19 02:26 UTC -
web:support.microsoft.com
This update for Windows 11, version 25H2 and 24H2 (KB5084597) incudes security improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates. To view the ...
2026-06-19 02:26 UTC -
web:www.notebookcheck.net
CVE - 2026 -41089, a critical Windows Netlogon flaw rated CVSS 9.8, is now actively exploited. Unpatched domain controllers face full SYSTEM-level compromise with no credentials needed.
2026-06-19 02:26 UTC -
web:www.rapid7.com
Microsoft is publishing 137 vulnerabilities on May 2026 Patch Tuesday, including critical RCE in Netlogon and the Windows DNS client.
2026-06-19 02:26 UTC -
web:www.sentinelone.com
CVE - 2026 -41089 is a buffer overflow vulnerability in Windows Server 2012. Learn about its impact, affected versions, and mitigation methods.
2026-06-19 02:26 UTC
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