LWA-2026-2556 MAL-2026-5565 ↗ confirmed malware

ai-sdk-helpers@1.1.0

Malicious code in ai-sdk-helpers (npm)

T1195.002 · Compromise Software Supply ChainT1059 · Command and Scripting InterpreterT1546.016 · Installer PackagesT1082 · System Information DiscoveryT1552.001 · Credentials In FilesT1567 · Exfiltration Over Web Service

Analysis

Same cluster as the critical findings: postinstall-with-custom-script confirms the lifecycle hook exists, and investigation showed scripts/postinstall.js is malicious — reads git config, GitHub CLI config, hostname, username, cwd and POSTs to a Cloud Run endpoint.

analyzed by
Leitwacht
first seen
Jun 7, 2026, 06:19 PM
analyzed
Jun 7, 2026, 06:27 PM

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Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.