GHSA-3RMJ-9M5H-8FPV Astro: Memory exhaustion DoS due to missing request body size limit in Server Islands

Summary Astro's Server Islands POST handler buffers and parses the full request body as JSON without enforcing a size limit. Because JSON.parse allocates a V8 heap object for every element in the input, a crafted payload of many small JSON objects achieves 15x memory amplification wire bytes to...