MAL-2026-12717 Malicious code in devplatform-jscodeshift-plugin (npm)
Malicious package
Published
MAL-2026-12717 is a malicious package: devplatform-jscodeshift-plugin (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-12717/ (Markdown: https://insights.sbomify.com/MAL-2026-12717/index.md)
- Package
- devplatform-jscodeshift-plugin
- Registry
- npm
What is MAL-2026-12717?
MAL-2026-12717 is a malicious package in devplatform-jscodeshift-plugin, published on 5 Aug 2026.
Official description
On require(), index.js loads loader.js, which reconstructs Cloudflare Workers hostnames from split string fragments (e.g. ['oob-worke','r.cf101-a','df.workers.d','ev'].join('')) and a DNS-TXT fallback channel via fragmented 'sdk.dl.wel1.ru' resolvers, downloads a platform-specific binary, writes it to /var/tmp/.cache<hex> on Unix or %TEMP%\dotnet_diag_<hex>.exe on Windows, chmods it 0o755, and spawns it detached via cp.spawn('/bin/sh',['-c', fp+' &']) or spawn('cmd',…). The dropped artifacts use names impersonating telemetry / dotnet diagnostics, and environment variables like DISABLE_TELEMETRY/ANALYTICS_OPT_OUT/DO_NOT_TRACK are honored to provide a cover story. The package has no jscodeshift-plugin functionality and appears to be a name-squat lure whose only purpose is dropping and executing this remote payload.
What should I do about MAL-2026-12717?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.