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Malicious code in claims-person-api-adapters (npm)

0
Unknown
Published: 08/05/2026 (08/05/2026, 14:03:37 UTC)
Source: GCVE Database
Product: claims-person-api-adapters

Description

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (ef5943c3dd39268851fabc25f5a2c686cf8b102954be63cb80afb04c03deddc6) On require() of the package, index.js loads _ext.js which reconstructs hardcoded network destinations via Array.join string-splitting to evade static analysis, resolving to four Cloudflare Workers hosts of the form oob-worker.cf1{00-03}-*.workers.dev with a DNS-TXT chunked fallback across sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The module selects a platform-specific payload, downloads a binary via https.get, writes it to /var/tmp or %TEMP% under cover-story names such as.cache_<hex> and dotnet_diag_<hex>.exe, chmods it to 0755, and spawns it detached via /bin/sh -c on POSIX or cmd.exe /c start /b on Windows. There is no hash or signature verification of the fetched bytes, the destination hosts are unrelated to any documented publisher for a claims/person API adapter, and the reconstruction of URLs from split fragments plus DNS-TXT covert-channel fallback are evasion techniques rather than delivery hygiene. The package name suggests a benign adapter library, but its only observed effect on import is retrieving and executing attacker-controlled code on the installer host.

Affected software

npmghsa
claims-person-api-adapters
Affected versions
=35.2.4

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
MAL-2026-12635
Osv Schema Version
1.7.4
Aliases
[]
Ecosystems
["npm"]
Database Specific Severity
null
Cvss Version
null

Threat ID: 6a735734bf8831d53913e3a7

Added to database: 08/05/2026, 15:31:00 UTC

Last updated: 08/05/2026, 15:31:00 UTC

Views: 1

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