CVE-2025-55181
Sending an HTTP request/response body with greater than 2^31 bytes triggers an infinite loop in proxygen::coro::HTTPQuicCoroSession which blocks the backing event loop and unconditionally appends data to a std::vector per-loop iteration. This issue leads to unbounded memory growth and eventually causes the process to run out of memory.
| Software | From | Fixed in |
|---|---|---|
| facebook / proxygen | 2025.08.25.00 | 2025.12.01.00.x |
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