devplatform-spa-plugin-location (npm) · Malicious Code
Affects devplatform-spa-plugin-locationSource GCVE Database
Malicious package : remove devplatform-spa-plugin-location and rotate any secrets on hosts that installed it.
Data as of 6 Aug 2026, 18:24 UTC
Malicious package
Published to npm · OSV MAL-2026-12770
What to do
Remove devplatform-spa-plugin-location 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 |
|---|---|---|
| npmdevplatform-spa-plugin-location | 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 (cb9472f7623159163739228ed6ec07beb8599d3867f7c5215e4bf0e4bbde5a78) On require() of the package, index.js loads _vendor.js, which selects a platform-specific payload URL by joining string fragments to reconstruct Cloudflare Worker hostnames (oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev), with a DNS-TXT chunked base64 fallback via sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The fetched bytes are written to /var/tmp or %TEMP% under disguised names (e.g. 'dotnet_diag_*.exe', '.cache_*'), chmod 0755, and executed detached via spawn('/bin/sh', ['-c', fp + ' &'], {detached:true}).unref() or spawn('cmd',...). Hostname fragments are array-joined at runtime and a helper suppresses console output, deliberately evading static inspection. The package name resembles a legitimate SPA plugin but the shipped _vendor.js is a dropper granting arbitrary remote code execution on any host that imports the module. ## Source: ghsa-malware (efc283f86f94400db2d3b8e9aea0b1c936d347f16a36df77dde30b00eb2c7980) 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.