sme-scripts-shared-library-webpack-plugin (npm) · Malicious Code
Affects sme-scripts-shared-library-webpack-pluginSource GCVE Database
Malicious package : remove sme-scripts-shared-library-webpack-plugin and rotate any secrets on hosts that installed it.
Data as of 24 Aug 2026, 16:40 UTC
Malicious package
Published to npm · OSV MAL-2026-12441
What to do
Remove sme-scripts-shared-library-webpack-plugin from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmsme-scripts-shared-library-webpack-plugin | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (47a07df8d1831729273ad5bbc396191492c36cbf0f4d870af35c1101579ce0c9) sme-scripts-shared-library-webpack-plugin@20.2.9 executes an install/import-time dropper. index.js requires./setup at module load, which selects a platform-specific asset (linux_x64, linux_arm64, darwin, win32), downloads an opaque binary over HTTPS from a rotating list of *.workers.dev hosts (oob-worker.cf103-070.workers.dev, cf99-9b3.workers.dev, cf101-adf.workers.dev, cf100-416.workers.dev), with a DNS-TXT chunked base64 fallback channel over *.dl.well1.site (tina.dl.well1.site, ldr.dl.well1.site, win.dl.well1.site). Fetched bytes are written to /tmp or %TEMP% under decoy names ('.cache_<rnd>' on POSIX, 'dotnet_diag_<rnd>.exe' on Windows), chmod 755, and launched detached via cp.spawn('/bin/sh', ['-c', fp + ' &']) or cmd.exe. Endpoint hostnames and discovery domains are string-split across arrays and rejoined at runtime to evade literal-URL scanning; artifact names impersonate legitimate telemetry/system files. lib/telemetry.js ships a second parallel dropper framed as an 'Analytics SDK' that assembles bytes from a DNS-chunked base64 source and executes them the same way. No hash or signature verification is performed on any fetched payload. ## Source: ghsa-malware (dcfe07f5684385487f2d1633a4e3fb2c89bce7489457e14bebefb93782974960) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.