@or-sdk/druid@1.4.9
Malicious code in @or-sdk/druid (npm)
Analysis
The package's preinstall hook (setup.mjs) downloads the Bun runtime from the official oven-sh/bun GitHub release and uses it to execute a bundled 727KB obfuscated JavaScript payload (math_init.js). The payload is obfuscated with a custom string-array decoder and contains eval, Function, and child_process calls, running arbitrary code at install time. The package also depends on two sibling packages (@or-sdk/base, @or-sdk/providers) that carry the same malicious payload family. The obfuscated payload's network endpoints are encoded and not recoverable from the shipped source.
- analyzed by
- Leitwacht
- first seen
- Aug 4, 2026, 11:57 AM
- analyzed
- Aug 4, 2026, 05:45 PM
- weekly installs
- 1,066
Related advisories
- @or-sdk/base@0.44.6
- @or-sdk/sdk-api@0.29.4
- @or-sdk/providers@0.3.8
- @or-sdk/data-hub-svc@2.3.7
- @or-sdk/key-value-storage@0.28.8
- @or-sdk/sku-builder@2.5.3
- @or-sdk/account-settings@1.3.8
- @or-sdk/notifications@1.7.7
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.