CVE-2026-39836

high

Published 2026-05-07 · Modified 2026-05-11

CVSS v3

7.5

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

CVSS v2

—

VIR risk

7.5

Description

The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL (0).

Exploit likelihood

83%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2026-39836.html

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-39836

vendor Authored 2026-05-27

Vendor advisory: security@golang.org — https://pkg.go.dev/vuln/GO-2026-4971

vendor Authored 2026-05-27

Vendor advisory: security@golang.org — https://go.dev/cl/775320

OS	Version	Status	Fixed in
debian	trixie	fixed	`0`
debian	bullseye	fixed	`0`
debian	bookworm	fixed	`0`
debian	forky	fixed	`0`
debian	sid	fixed	`0`
sles		affected

Ecosystem	Package	Vulnerable	Fixed
Go	stdlib	`>=1.26.0-0,<1.26.3`	`1.25.10`

Vendor	Product	Versions	Fixed
golang	go	`{"endExcluding":"1.25.10"}`	`1.25.10`
google	gcp

CWE-476

Verify integrity in audit chain (admin only). AS-IS.