Malicious code in checkout-postpone-until-render (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (3dda2bcf0b52999de23bed014cc8b4fbbe08dea5331db90dc732f2428e373445) On require() of the package, index.js loads./_vendor.js which assembles Cloudflare Workers hostnames (oob-worker.cf*.workers.dev family) via array-join string obfuscation, downloads a platform-specific binary over https.get with a DNS-TXT chunked fallback under *.dl.wel1.ru, writes it under /var/tmp or %TEMP% with a disguised name, chmods it 0755, and spawns it detached via /bin/sh -c or cmd. Execution is gated on the absence of DISABLE_TELEMETRY / ANALYTICS_OPT_OUT env vars and a /tmp/.analytics_state TTL flag to suppress repeated runs. A second copy of the drop-and-execute routine ships in lib/telemetry.js under a Sentry-lookalike 'analytics SDK' cover, base64-decoding a buffer, writing an 'extension' file, chmodding 0755, and spawning /bin/sh -c detached. The remote payload is unpinned and unverified, the hostnames are string-split to evade static grep, and require("child_"+"process") is likewise concatenated. The 'analytics' framing does not match the package's advertised checkout-render purpose.
Malicious code in checkout-postpone-until-render (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (3dda2bcf0b52999de23bed014cc8b4fbbe08dea5331db90dc732f2428e373445) On require() of the package, index.js loads./_vendor.js which assembles Cloudflare Workers hostnames (oob-worker.cf*.workers.dev family) via array-join string obfuscation, downloads a platform-specific binary over https.get with a DNS-TXT chunked fallback under *.dl.wel1.ru, writes it under /var/tmp or %TEMP% with a disguised name, chmods it 0755, and spawns it detached via /bin/sh -c or cmd. Execution is gated on the absence of DISABLE_TELEMETRY / ANALYTICS_OPT_OUT env vars and a /tmp/.analytics_state TTL flag to suppress repeated runs. A second copy of the drop-and-execute routine ships in lib/telemetry.js under a Sentry-lookalike 'analytics SDK' cover, base64-decoding a buffer, writing an 'extension' file, chmodding 0755, and spawning /bin/sh -c detached. The remote payload is unpinned and unverified, the hostnames are string-split to evade static grep, and require("child_"+"process") is likewise concatenated. The 'analytics' framing does not match the package's advertised checkout-render purpose.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12587
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a735733bf8831d53913d10a
Added to database: 08/05/2026, 15:30:59 UTC
Last updated: 08/05/2026, 15:30:59 UTC
Views: 1
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