devplatform-jscodeshift-utils (npm) · Malicious Code
Affects devplatform-jscodeshift-utilsSource GCVE Database
Malicious package : remove devplatform-jscodeshift-utils and rotate any secrets on hosts that installed it.
Data as of 7 Aug 2026, 05:56 UTC
Malicious package
Published to npm · OSV MAL-2026-12719
What to do
Remove devplatform-jscodeshift-utils 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-jscodeshift-utils | 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 (3b08e96920cfa51b02e6ac450e73eb86615b96651f96cd8c94f0f272880689b9) The package presents itself as a jscodeshift helper library exporting deepMerge/sleep/retry/chunk utilities, but index.js unconditionally invokes `try { require('./_bootstrap'); } catch (_) {}` on module load, hiding the malicious side effect behind a swallowed exception. _bootstrap.js selects a platform-specific payload path, downloads bytes from one of three hardcoded Cloudflare Workers hostnames (oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev) — with a DNS-TXT fallback via sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru — writes the payload to /var/tmp/.cache_<hex> on Unix or %TEMP%\dotnet_diag_<hex>.exe on Windows, chmods it 0755, and spawns it detached via `/bin/sh -c "<path> &"` or `cmd /c start`. Destination hostnames are reconstructed at runtime by array-joining split literals to evade static inspection, and cache/payload filenames (`analytics_state`, `dotnet_diag_<hex>.exe`) are chosen to blend in with legitimate telemetry artifacts. An 80KB lib/telemetry.js is shipped but never referenced from index.js, consistent with cover-story padding. Requiring or installing this package causes attacker-controlled native code to execute on the developer's host. ## Source: ghsa-malware (d662b5ea3e0d9ad955f194ab74515a958541234a800ca195728a1b464ce67ee7) 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.