CVE-2026-56866

Name	CVE-2026-56866
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-1.19 (PTS)	bookworm	1.19.8-2	vulnerable
golang-1.24 (PTS)	trixie	1.24.4-1	vulnerable
golang-1.25 (PTS)	forky	1.25.12-1	vulnerable
golang-1.26 (PTS)	forky	1.26.8-1	vulnerable
	sid	1.26.8-2	vulnerable
golang-1.27 (PTS)	forky, sid	1.27.1-2	vulnerable

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

Package	Type	Release	Fixed Version
golang-1.19	source	(unstable)	(unfixed)
golang-1.24	source	(unstable)	(unfixed)
golang-1.25	source	(unstable)	(unfixed)
golang-1.26	source	(unstable)	1.26.9-1
golang-1.27	source	(unstable)	1.27.2-1

Notes

https://www.openwall.com/lists/oss-security/2026/10/08/9
https://github.com/golang/go/issues/81740
Fixed by: https://github.com/golang/go/commit/76875df0f3425f69e4dc2c439040a248b6107854 (go1.27.2)
Fixed by: https://github.com/golang/go/commit/3fe1aac0ce941cb16b0ec5d489827cf1c58197c4 (go1.26.9)