Malicious code in chai-as-inspired (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (bc4795830ed2849aaf2a6eaa488fbecc42a31c2d6d212fe34e635c16217e46ed) chai-as-inspired is a typosquat resembling chai/pino packages. Its middleware entrypoint (index.js) spawns a detached `node lib/caller.js` child on invocation. caller.js hides its network destination behind a fake `process.env` object whose values are base64 blobs; decoding yields the URL https://api.jsonstorage.net/v1/json/2ef8c758-a96f-459e-b036-b3b90379a165/f89e8264-86c2-4684-94da-c3f82d59370f and an `x-secret-key` header. The response's `cookie` field is passed to `new Function.constructor('require', s)(require)`, executing attacker-controlled JavaScript in a retry loop with the installer's `require` and full Node privileges. The remote content is hosted on a mutable, anonymous JSON-storage bucket and can be changed at any time by the operator. The base64 disguise of the endpoint and header keys, combined with the fetch-and-eval mechanism, establishes hostile intent.
Malicious code in chai-as-inspired (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (bc4795830ed2849aaf2a6eaa488fbecc42a31c2d6d212fe34e635c16217e46ed) chai-as-inspired is a typosquat resembling chai/pino packages. Its middleware entrypoint (index.js) spawns a detached `node lib/caller.js` child on invocation. caller.js hides its network destination behind a fake `process.env` object whose values are base64 blobs; decoding yields the URL https://api.jsonstorage.net/v1/json/2ef8c758-a96f-459e-b036-b3b90379a165/f89e8264-86c2-4684-94da-c3f82d59370f and an `x-secret-key` header. The response's `cookie` field is passed to `new Function.constructor('require', s)(require)`, executing attacker-controlled JavaScript in a retry loop with the installer's `require` and full Node privileges. The remote content is hosted on a mutable, anonymous JSON-storage bucket and can be changed at any time by the operator. The base64 disguise of the endpoint and header keys, combined with the fetch-and-eval mechanism, establishes hostile intent.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12540
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a73573dbf8831d539153507
Added to database: 08/05/2026, 15:31:09 UTC
Last updated: 08/05/2026, 15:31:09 UTC
Views: 1
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