Poisoned Pipeline

Poisoned Pipeline / Incidents / AS288

AS288 · 2026-02

kilocode npm early supply-chain risk signals

npmAI coding agents

StepSecurity detected early supply-chain risk signals in a legitimate
kilocode npm release: small behavior changes that quietly weaken trust
before any attack happens. No exploitation observed — recorded as
research showing the pre-attack end of the kill chain (the same
weak-trust state attacks like AS66/AS74 exploit).

Mapped techniques

supply-chain behavior drift

T0176 · Defense Evasion · Disable or misconfigure security measures

Behavior changes that weaken trust before an attack.

Sources