Race Condition

Overview effect is a node package that allows you to add effects on images. Affected versions of this package are vulnerable to Race Condition in the MixedScheduler class, where the AsyncLocalStorage context is not properly isolated between concurrent fiber executions. An attacker can access or...

GHSA-38F7-945M-QR2G Effect `AsyncLocalStorage` context lost/contaminated inside Effect fibers under concurrent load with RPC

Versions - effect: 3.19.15 - @effect/rpc: 0.72.1 - @effect/platform: 0.94.2 - Node.js: v22.20.0 - Vercel runtime with Fluid compute - Next.js: 16 App Router - @clerk/nextjs: 6.x Root cause Effect's MixedScheduler batches fiber continuations and drains them inside a single microtask or timer...