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Not in CISA KEV
CRITICAL severity

Malicious Package in yeoman-genratorGHSA-f7g4-fm4c-54m9

CRITICAL

GHSA-f7g4-fm4c-54m9 is a critical-severity (CVSS 9.8) vulnerability in yeoman-genrator. No vendor fix is recorded yet; mitigation options are listed below.

Published
Updated
Affected
1 pkg
Patched
None yet
Exploits
None indexed
Exploitation data as of Sep 29, 2021 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
📦yeoman-genrator

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects npm packages — download data is not available via public APIs for these ecosystems.

Description

Version 2.0.2 of yoeman-generator contains malicious code as a preinstall script. The package is malware designed to take advantage of users making a mistake when typing the name of a module to install. When installed, the package downloads a file from a remote server, executes it and opens a backdoor.

Recommendation

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer.

The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
📦npmyeoman-genrator≥ 0.0.0No fix

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for yeoman-genrator, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    No patched version of yeoman-genrator has shipped for GHSA-f7g4-fm4c-54m9 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

Version 2.0.2 of `yoeman-generator` contains malicious code as a preinstall script. The package is malware designed to take advantage of users making a mistake when typing the name of a module to install. When installed, the package downloads a file from a remote server, executes it and opens a backdoor. ## Recommendation Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may hav
O3 Security · Impact-Aware SCA

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Malicious Package in yeoman-genrator (Critical 9.8)