Malicious code in chai-as-structured (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (9508b72d48575443d9e68f1da1ef6bdd1ebc9351f271fba56b563701f03e56e2) The package name evokes chai-as-promised but the shipped code presents itself as pino middleware. When the middleware factory in index.js is invoked, it spawns a detached node child process running lib/initializeCaller.js. That script constructs a fake process.env stub whose DEV_API_KEY, DEV_SECRET_KEY, and DEV_SECRET_VALUE fields are base64 blobs that decode to a URL and request headers pointing at https://tomato-brunhilda-40.tiiny.site/index.json (an anonymous file-hosting host). The response's cookie field is passed to new Function.constructor('require', response) with the host's require handed in, giving the fetched string full Node privileges. The base64 concealment, misleading DEV_API_KEY naming, detached child launch, and typosquat-style package name are consistent with intentional supply-chain attack tradecraft rather than any legitimate loader.
Malicious code in chai-as-structured (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (9508b72d48575443d9e68f1da1ef6bdd1ebc9351f271fba56b563701f03e56e2) The package name evokes chai-as-promised but the shipped code presents itself as pino middleware. When the middleware factory in index.js is invoked, it spawns a detached node child process running lib/initializeCaller.js. That script constructs a fake process.env stub whose DEV_API_KEY, DEV_SECRET_KEY, and DEV_SECRET_VALUE fields are base64 blobs that decode to a URL and request headers pointing at https://tomato-brunhilda-40.tiiny.site/index.json (an anonymous file-hosting host). The response's cookie field is passed to new Function.constructor('require', response) with the host's require handed in, giving the fetched string full Node privileges. The base64 concealment, misleading DEV_API_KEY naming, detached child launch, and typosquat-style package name are consistent with intentional supply-chain attack tradecraft rather than any legitimate loader.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-10622
- Osv Schema Version
- 1.7.4
- Aliases
- ["GHSA-wf75-6wm5-v349"]
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a96f319acd9273b49e49725
Added to database: 09/01/2026, 15:45:29 UTC
Last updated: 09/01/2026, 15:45:29 UTC
Views: 1
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