AIKIDO-2026-633281
undici is vulnerable to Denial of Service (DoS)
59
Medium Risk
This Affects:
undiciTL;DR
The decompress interceptor decompresses response bodies according to the untrusted Content-Encoding header and caps the number of layers but not the total decompressed output size. A small compressed payload can expand without bound in client memory and stall or crash the process. The fix adds a maxSize limit and rejects responses that exceed it.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you use interceptors.decompress().
Background info
undici is vulnerable to Denial of Service (DoS) in versions 7.15.0 - 7.29.0 and 8.0.0 - 8.10.1.
How to fix this
Upgrade the undici library to the patch version.
Links
GitHub Release
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