What is RHSA-2026:87042?

RHSA-2026:87042 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: golang security, bug fix, and enhancement update

Which CVE IDs does RHSA-2026:87042 cover?

RHSA-2026:87042 covers the following CVE IDs: CVE-2026-111943. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:87042?

RHSA-2026:87042 has a CVSS v3 base score of 6.8, published by Red Hat Product Security.

Which products are affected by RHSA-2026:87042?

RHSA-2026:87042 affects 22 products, including: Red Hat Enterprise Linux AppStream E4S (v.9.4); go-toolset-0:1.26.10-1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4); go-toolset-0:1.26.10-1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4); go-toolset-0:1.26.10-1.el9_4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4); go-toolset-0:1.26.10-1.el9_4.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4); and others — see the full list on the advisory page.

RHSA-2026:87042HighCVSS 6.8

Red Hat Security Advisory: golang security, bug fix, and enhancement update

Vendor

Red Hat Product Security

Published

October 21, 2026

Last Modified

October 21, 2026

🔗 CVE IDs covered (1)

CVE-2026-111943 →

📋 Description

CVE-2026-111943 — crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates

🎯 Affected products22

Red Hat Enterprise Linux AppStream E4S (v.9.4)
go-toolset-0:1.26.10-1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
go-toolset-0:1.26.10-1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
go-toolset-0:1.26.10-1.el9_4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
go-toolset-0:1.26.10-1.el9_4.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-0:1.26.10-1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-0:1.26.10-1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-0:1.26.10-1.el9_4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-0:1.26.10-1.el9_4.src as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-0:1.26.10-1.el9_4.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-bin-0:1.26.10-1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-bin-0:1.26.10-1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-bin-0:1.26.10-1.el9_4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-bin-0:1.26.10-1.el9_4.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-docs-0:1.26.10-1.el9_4.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-misc-0:1.26.10-1.el9_4.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-race-0:1.26.10-1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-race-0:1.26.10-1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-race-0:1.26.10-1.el9_4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-race-0:1.26.10-1.el9_4.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-src-0:1.26.10-1.el9_4.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)
golang-tests-0:1.26.10-1.el9_4.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: See the security bulletin for a detailed mitigation procedure.

🔗 CVE IDs covered (1)

📋 Description

🎯 Affected products22

✅ Remediation

🔗 References (5)