Invoking integer overflow in NewNTUnicodeString in golang.org/x/sys/windows_CVE-2026-39824

3.3 / 10

LOW

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Description

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.

Basic Information

ID CVE-2026-39824

Source Go

Published May 22, 2026 at 19:39

Modified May 27, 2026 at 13:31

Affected Product

Vendor golang.org/x/sys

Product golang.org/x/sys/windows

Affected Versions golang.org/x/sys golang.org/x/sys/windows 0

CWE Classification

CWE-190

References

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    "published": "2026-05-22T19:39:47.629Z",
    "modified": "2026-05-27T13:31:26.148Z",
    "type": "cve",
    "title": "Invoking  integer overflow in NewNTUnicodeString in golang.org/x/sys/windows",
    "source": "Go",
    "references": "https://go.dev/issue/78916\nhttps://go.dev/cl/770080\nhttps://groups.google.com/g/golang-announce/c/6MMI8Lj-Atg\nhttps://pkg.go.dev/vuln/GO-2026-5024",
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    "product": "golang.org/x/sys/windows",
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