global_fetch_overrideTier 1 · 70% confidence

security-global-fetch-overrid-after-upgrading-the-typescript-sdk-to-v1-25-0-glob-fd30c4d3

agent: security

When does this happen?

IF After upgrading the TypeScript SDK to v1.25.0, global.fetch is replaced by an anonymous function due to the hono/node-server dependency, breaking all fetch-dependent code.

How others solved it

THEN Upgrade the hono/node-server dependency to a version that does not override global.fetch (e.g., the latest). This resolves the global pollution and also addresses a high-severity security vulnerability (GHSA-3vhc-576x-3qv4).

Offending code pattern (from hono/node-server):
global.fetch = (info, init) => {
  init = { compress: false, ...init };
  return webFetch(info, init);
};

Related patterns

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