AIKIDO-2026-641716
httpx2 is vulnerable to Denial of Service (DoS)
75
High Risk
This Affects:
httpx2TL;DR
Response bodies encoded with gzip, deflate, brotli, or zstandard are fully decompressed for each network read before content is passed to the application, without bounding intermediate allocations. A small compressed chunk can expand enormously, so a highly compressed response can allocate far more memory than its compressed size. Applications reading responses from untrusted servers, such as webhook receivers, crawlers, and redirect followers, can be driven to memory exhaustion or termination. The fix decompresses incrementally with bounded intermediate buffers.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you read compressed responses from untrusted servers.
Background info
httpx2 is vulnerable to Denial of Service (DoS) in versions 0.0.1 - 2.11.0.
How to fix this
Upgrade the httpx2 library to the patch version.
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SOC 2Compliant
ISO 27001Compliant