# Vercel A sandbox without a network boundary is only half a sandbox

- Product: Vercel (https://whatsnew.fyi/product/vercel)
- Vendor: Vercel
- Date: 2026-08-11
- Original notes: https://vercel.com/blog/a-sandbox-without-a-network-boundary-is-only-half-a-sandbox
- Permalink: https://whatsnew.fyi/product/vercel/releases/feed-https-vercel.com-blog-a-sandbox-without-a-network-bound

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

---

Running untrusted code safely requires more than separating it from the host. You also have to control what that code can reach. This matters more as AI agents gain the ability to read files, execute…