@gleamkit/ws
This report shows the evidence for @gleamkit/ws@8.21.3, the only known version.
OpenSSF/OSV Malicious Advisory
imported 3mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-10402 confirms this npm version as malicious.
Advisory
MAL-2026-10402
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in @gleamkit/ws (npm)
Details
The package publishes under scope `@gleamkit/ws` while copying the `ws` package's description, homepage, repository, author, and README verbatim, and bundling the legitimate `ws` source so it appears functional. Appended to `lib/websocket.js` after the copied WebSocket implementation is a heavily obfuscated payload (base64+RC4 string decoder over a ~700-entry rotated string array, hex-named identifiers, duplicated as two sequential IIFEs) that reconstructs hostnames, paths, environment keys, and spawn arguments at runtime. On every load — `index.js` (main) and `wrapper.mjs` both pull in `./lib/websocket` — the payload issues an HTTPS request to fetch an external binary, AES-256-GCM decrypts it, writes it under `os.tmpdir()`, chmods it to 0o755, and spawns it as a detached, `unref()`ed child process with `windowsHide:true`, then calls `process.exit`. A marker env variable gate (`process.env[d]!== e`) is used to avoid re-entry. Because require/import is the trigger, any project that installs and loads `@gleamkit/ws` executes attacker-controlled bytes fetched from a remote host at load time.
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 @gleamkit/ws@8.21.3.
The versions list below shows the verdict for each recorded version.
- Avoid installing @gleamkit/ws@8.21.3. 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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