AIKIDO-2025-10717
github.com/valyala/fasthttp is vulnerable to Improper Input Validation
60
Medium Risk
This Affects:
github.com/valyala/fasthttpTL;DR
Affected versions of this package are vulnerable to several cases of improper input validation, including insufficient validation of URL credentials (username:password@), IPv6 addresses, URI schemes, and hostnames. The package also fails to reject invalid hosts with multiple port delimiters, backslash-based absolute URIs, and malformed IPv6 hostnames, potentially leading to parsing inconsistencies or security bypasses.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
github.com/valyala/fasthttp is vulnerable to Improper Input Validation in versions 1.0.0 - 1.66.0.
How to fix this
Upgrade the github.com/valyala/fasthttp library to the patch version.
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