CVE-2026-111943

NameCVE-2026-111943
DescriptionOn most platforms, Go uses the given system root certificates. However, in some narrower cases, the system trust stores may not be updated without further action. To defend against the narrower set of cases that may remain affected, a denylist was added in crypto/x509 to return an error when calling Verify with any of the known intermediate certificates that are no longer considered to be trustworthy.
SourceCVE (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 PackageReleaseVersionStatus
golang-1.19 (PTS)bookworm1.19.8-2vulnerable
golang-1.24 (PTS)trixie1.24.4-1vulnerable
golang-1.26 (PTS)forky, sid1.26.9-1vulnerable
golang-1.27 (PTS)forky, sid1.27.2-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
golang-1.19source(unstable)(unfixed)
golang-1.24source(unstable)(unfixed)
golang-1.25source(unstable)(unfixed)
golang-1.26source(unstable)(unfixed)
golang-1.27source(unstable)(unfixed)

Notes

https://github.com/golang/go/issues/82345
Fixed by: https://github.com/golang/go/commit/90617fb7ceb59cf08bee7826bb51b8c8fb8c11de (go1.27.3)
Fixed by: https://github.com/golang/go/commit/aa64342a9e13affffea3e989d67e574475af5a78 (go1.26.10)

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