git-userhub
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This report shows the evidence for git-userhub@2.1.5. 2 of 40 known versions are blocked or flagged. The newest version, 5.0.0, is allowed. See all versions.
OpenSSF/OSV Malicious Advisory
imported 4mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-4573 confirms this npm version as malicious.
Advisory
MAL-2026-4573
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in git-userhub (npm)
Details
Package name 'git-userhub' is a lookalike of a GitHub-related identity, with no legitimate publisher backing. The package.json declares a postinstall hook ("postinstall": "node install.js") that runs install.js on every npm install. install.js requires child_process and performs multiple https.get calls together with hostname/identity reads — the canonical install-time fetch-and-exec shape. There is no shipped native source tree, no publisher-matching CDN, and no version-pinned binary that would justify a postinstall network fetch. Combined with the lookalike package name (git-<project> typosquat shape used by recent supply-chain droppers), the structure matches a postinstall dropper that spawns child processes against fetched content on the installer's machine. Installing this package risks remote code execution and host/identity exfiltration on the installer's system or CI runner.
References
Source & flagged code
0 flagged · loading sourceNo flagged code excerpts are attached to this scan.
Findings
1 High
HighOsv Malicious Advisory
Affected versions and remediation
This report applies to git-userhub@2.1.5.
The same advisory and Firewall decision cover 2 recorded versions
2.1.4, 2.1.5
The versions list below shows the verdict for each recorded version.
- Avoid installing git-userhub@2.1.5. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
This report uses published external intelligence. The advisory does not provide a separate source-code analysis for each listed version.
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