CVE-2026-39836

Name	CVE-2026-39836
Description	The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL (0).
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
golang-1.15 (PTS)	bullseye	1.15.15-1~deb11u4	fixed
golang-1.19 (PTS)	bookworm	1.19.8-2	fixed
golang-1.24 (PTS)	trixie	1.24.4-1	fixed
golang-1.25 (PTS)	forky	1.25.9-1	fixed
	sid	1.25.10-1	fixed
golang-1.26 (PTS)	forky	1.26.2-3	fixed
	sid	1.26.3-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version
golang-1.15	source	(unstable)	(not affected)
golang-1.19	source	(unstable)	(not affected)
golang-1.24	source	(unstable)	(not affected)
golang-1.25	source	(unstable)	(not affected)
golang-1.26	source	(unstable)	(not affected)

Notes

- golang-1.25 <not-affected> (Windows-specific)
- golang-1.26 <not-affected> (Windows-specific)
- golang-1.24 <not-affected> (Windows-specific)
- golang-1.19 <not-affected> (Windows-specific)
- golang-1.15 <not-affected> (Windows-specific)
https://go-review.googlesource.com/c/go/+/775320
https://github.com/golang/go/issue/79006
https://groups.google.com/g/golang-announce/c/qcCIEXso47M