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AIKIDO-2026-11041

golang.org/x/sys is vulnerable to Integer Overflow

Integer OverflowCVE-2026-39824 Published Jun 2, 2026

33

Low Risk

This Affects:

GOgolang.org/x/sys
0.0.0 - 0.43.0
Fixed in 0.44.0
Are you affected? Scan for Free

TL;DR

NewNTUnicodeString does not check for string length overflow. When provided with a string that overflows the maximum size of a NTUnicodeString (a 16-bit number of bytes), it returns a truncated string rather than an error.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range and if you use the golang.org/x/sys/windows functionalities.

Background info

golang.org/x/sys is vulnerable to Integer Overflow in versions 0.0.0 - 0.43.0.

How to fix this

Upgrade the golang.org/x/sys library to the patch version.

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