CVE-2025-55181
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-02

Last updated on: 2025-12-04

Assigner: Facebook, Inc.

Description
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.
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Meta Information
Published
2025-12-02
Last Modified
2025-12-04
Generated
2026-06-16
AI Q&A
2025-12-03
EPSS Evaluated
2026-06-15
NVD
CVE-2025-55181
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
facebook proxygen *
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-834 The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed.
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Executive Summary

This vulnerability occurs when an HTTP request or response body larger than 2^31 bytes is sent, causing an infinite loop in the proxygen::coro::HTTPQuicCoroSession component. This loop blocks the event loop and continuously appends data to a vector, leading to unbounded memory growth and eventually causing the process to run out of memory.

Impact Analysis

The vulnerability can cause the affected process to consume excessive memory until it runs out of memory, potentially leading to denial of service by crashing or severely degrading the performance of the application handling HTTP requests or responses.

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