Is golang.org/x/sys affected by CVE-2026-39824?

Go golang.org/x/sys is affected in <0.44.0.

Is CVE-2026-39824 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.1%.

medium

CVE-2026-39824

Q: Is CVE-2026-39824 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.1%.

Go · golang.org/x/sys

Summary

Invoking integer overflow in NewNTUnicodeString in golang.org/x/sys/windows

Severity: medium
EPSS: 0.1% (p4)
Also known as: GO-2026-5024
Published: 2026-05-22

References

https://go.dev/issue/78916
https://go.dev/cl/770080
https://groups.google.com/g/golang-announce/c/6MMI8Lj-Atg

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.