Skip to navigation Skip to main content

Utilities

  • Subscriptions
  • Downloads
  • Red Hat Console
  • Get Support
Red Hat Customer Portal
  • Subscriptions
  • Downloads
  • Red Hat Console
  • Get Support
  • Products

    Top Products

    • Red Hat Enterprise Linux
    • Red Hat OpenShift
    • Red Hat Ansible Automation Platform
    All Products

    Downloads and Containers

    • Downloads
    • Packages
    • Containers

    Top Resources

    • Documentation
    • Product Life Cycles
    • Product Compliance
    • Errata
  • Knowledge

    Red Hat Knowledge Center

    • Knowledgebase Solutions
    • Knowledgebase Articles
    • Customer Portal Labs
    • Errata

    Top Product Docs

    • Red Hat Enterprise Linux
    • Red Hat OpenShift
    • Red Hat Ansible Automation Platform
    All Product Docs

    Training and Certification

    • About
    • Course Index
    • Certification Index
    • Skill Assessment
  • Security

    Red Hat Product Security Center

    • Security Updates
    • Security Advisories
    • Red Hat CVE Database
    • Errata

    References

    • Security Bulletins
    • Severity Ratings
    • Security Data

    Top Resources

    • Security Labs
    • Backporting Policies
    • Security Blog
  • Support

    Red Hat Support

    • Support Cases
    • Troubleshoot
    • Get Support
    • Contact Red Hat Support

    Red Hat Community Support

    • Customer Portal Community
    • Community Discussions
    • Red Hat Accelerator Program

    Top Resources

    • Product Life Cycles
    • Customer Portal Labs
    • Red Hat JBoss Supported Configurations
    • Red Hat Lightspeed
Or troubleshoot an issue.

Select Your Language

  • English
  • Français
  • 한국어
  • 日本語
  • 中文 (中国)

Infrastructure and Management

  • Red Hat Enterprise Linux
  • Red Hat Satellite
  • Red Hat Subscription Management
  • Red Hat Lightspeed
  • Red Hat Ansible Automation Platform

Cloud Computing

  • Red Hat OpenShift
  • Red Hat OpenStack Platform
  • Red Hat OpenShift
  • Red Hat OpenShift AI
  • Red Hat OpenShift Dedicated
  • Red Hat Advanced Cluster Security for Kubernetes
  • Red Hat Advanced Cluster Management for Kubernetes
  • Red Hat Quay
  • Red Hat OpenShift Dev Spaces
  • Red Hat OpenShift Service on AWS

Storage

  • Red Hat Gluster Storage
  • Red Hat Hyperconverged Infrastructure
  • Red Hat Ceph Storage
  • Red Hat OpenShift Data Foundation

Runtimes

  • Red Hat Runtimes
  • Red Hat JBoss Enterprise Application Platform
  • Red Hat Data Grid
  • Red Hat JBoss Web Server
  • Red Hat build of Keycloak
  • Red Hat support for Spring Boot
  • Red Hat build of Node.js
  • Red Hat build of Quarkus

Integration and Automation

  • Red Hat Application Foundations
  • Red Hat Fuse
  • Red Hat AMQ
  • Red Hat 3scale API Management
All Products
Red Hat Product Errata RHSA-2026:87042 - Security Advisory
Issued:
2026-10-21
Updated:
2026-10-21

RHSA-2026:87042 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: golang security, bug fix, and enhancement update

Type/Severity

Security Advisory: Important

Red Hat Lightspeed patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for golang is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The golang packages provide the Go programming language compiler.

Security Fix(es):

  • golang: crypto/x509: Go: crypto/x509: mitigation for security concerns with a specific Certificate Authority (CVE-2026-111943)

Bug Fix(es) and Enhancement(s):

  • Update Go to version 1.26.10+1 [rhel-9.4.z] (JIRA:RHEL-287196)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux Server - AUS 9.4 x86_64
  • Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 ppc64le
  • Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 x86_64
  • Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 aarch64
  • Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 s390x
  • Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.4 x86_64
  • Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.4 aarch64
  • Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.4 ppc64le
  • Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.4 s390x

Fixes

  • BZ - 2556068 - CVE-2026-111943 crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates
  • RHEL-287196 - Update Go to version 1.26.10+1 [rhel-9.4.z]

CVEs

  • CVE-2026-56866
  • CVE-2026-78659
  • CVE-2026-78660
  • CVE-2026-78663
  • CVE-2026-78667
  • CVE-2026-78669
  • CVE-2026-94439
  • CVE-2026-94440
  • CVE-2026-94444
  • CVE-2026-94447
  • CVE-2026-94448
  • CVE-2026-97030
  • CVE-2026-97031
  • CVE-2026-97032
  • CVE-2026-111943

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux Server - AUS 9.4

SRPM
golang-1.26.10-1.el9_4.src.rpm SHA-256: c6b95f74fbc8ea6d51662f861646d501cd54695ad7ce073e358d74cf63b89691
x86_64
go-toolset-1.26.10-1.el9_4.x86_64.rpm SHA-256: 68804d1b517f36b4460c111a670ef412012381b74f7c03e6d0971f8e4158b18b
golang-1.26.10-1.el9_4.x86_64.rpm SHA-256: f4dea9a33c75f0331a3ef64227d0aeecc3e4d315fa952c9a0bf67c0b410f5d6b
golang-bin-1.26.10-1.el9_4.x86_64.rpm SHA-256: 7d58e0c3019452d74e073b3ecc50d07f92e59f91f3dd5048d742fe908d6b98af
golang-docs-1.26.10-1.el9_4.noarch.rpm SHA-256: f5f0f8971f4ed4e813daa9cd916273473e77f04617dd965934fb78937849e494
golang-misc-1.26.10-1.el9_4.noarch.rpm SHA-256: d309484b8bd85702ab173f795aa25a8789dfa34e78d7c78df30d2da2c26e46c8
golang-race-1.26.10-1.el9_4.x86_64.rpm SHA-256: f2e7c05da751fbb06631502f4f3cfdbbb936c17a0f0474968a6f8a259736c04c
golang-src-1.26.10-1.el9_4.noarch.rpm SHA-256: 5d18c5cd246ca976414ae17ddfe8c2d6be10af3e0f61af8da35a69cf44b49de5
golang-tests-1.26.10-1.el9_4.noarch.rpm SHA-256: 41db38fcf2ad9a4f82aec0a0151a2748883e356b3333f2aac3b016063f314f02

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4

SRPM
golang-1.26.10-1.el9_4.src.rpm SHA-256: c6b95f74fbc8ea6d51662f861646d501cd54695ad7ce073e358d74cf63b89691
ppc64le
go-toolset-1.26.10-1.el9_4.ppc64le.rpm SHA-256: 630c946f62f2d02c5981c9567e87dcdb07812c3138be55a67177f3fae18d6021
golang-1.26.10-1.el9_4.ppc64le.rpm SHA-256: ffb0199846967c0ce91a7eb319a45318e993e13a93f48465281ba1413025c7b6
golang-bin-1.26.10-1.el9_4.ppc64le.rpm SHA-256: acc480246cd0f3a84440bfae6d2a56ad4caeb966b2b3d60e0fd9c500da8b8d08
golang-docs-1.26.10-1.el9_4.noarch.rpm SHA-256: f5f0f8971f4ed4e813daa9cd916273473e77f04617dd965934fb78937849e494
golang-misc-1.26.10-1.el9_4.noarch.rpm SHA-256: d309484b8bd85702ab173f795aa25a8789dfa34e78d7c78df30d2da2c26e46c8
golang-race-1.26.10-1.el9_4.ppc64le.rpm SHA-256: d37f47d83c77e139b50c1d25be27e85749f4b667223078ef24e090f089213dd7
golang-src-1.26.10-1.el9_4.noarch.rpm SHA-256: 5d18c5cd246ca976414ae17ddfe8c2d6be10af3e0f61af8da35a69cf44b49de5
golang-tests-1.26.10-1.el9_4.noarch.rpm SHA-256: 41db38fcf2ad9a4f82aec0a0151a2748883e356b3333f2aac3b016063f314f02

Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4

SRPM
golang-1.26.10-1.el9_4.src.rpm SHA-256: c6b95f74fbc8ea6d51662f861646d501cd54695ad7ce073e358d74cf63b89691
x86_64
go-toolset-1.26.10-1.el9_4.x86_64.rpm SHA-256: 68804d1b517f36b4460c111a670ef412012381b74f7c03e6d0971f8e4158b18b
golang-1.26.10-1.el9_4.x86_64.rpm SHA-256: f4dea9a33c75f0331a3ef64227d0aeecc3e4d315fa952c9a0bf67c0b410f5d6b
golang-bin-1.26.10-1.el9_4.x86_64.rpm SHA-256: 7d58e0c3019452d74e073b3ecc50d07f92e59f91f3dd5048d742fe908d6b98af
golang-docs-1.26.10-1.el9_4.noarch.rpm SHA-256: f5f0f8971f4ed4e813daa9cd916273473e77f04617dd965934fb78937849e494
golang-misc-1.26.10-1.el9_4.noarch.rpm SHA-256: d309484b8bd85702ab173f795aa25a8789dfa34e78d7c78df30d2da2c26e46c8
golang-race-1.26.10-1.el9_4.x86_64.rpm SHA-256: f2e7c05da751fbb06631502f4f3cfdbbb936c17a0f0474968a6f8a259736c04c
golang-src-1.26.10-1.el9_4.noarch.rpm SHA-256: 5d18c5cd246ca976414ae17ddfe8c2d6be10af3e0f61af8da35a69cf44b49de5
golang-tests-1.26.10-1.el9_4.noarch.rpm SHA-256: 41db38fcf2ad9a4f82aec0a0151a2748883e356b3333f2aac3b016063f314f02

Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4

SRPM
golang-1.26.10-1.el9_4.src.rpm SHA-256: c6b95f74fbc8ea6d51662f861646d501cd54695ad7ce073e358d74cf63b89691
aarch64
go-toolset-1.26.10-1.el9_4.aarch64.rpm SHA-256: c2fb6dc63fbaf45da65ed85c752df798b72e0af227a7947457e8261a2b8ea094
golang-1.26.10-1.el9_4.aarch64.rpm SHA-256: 0619e3afc6d36e2713c3cdb2b0b26c6d48905c210d7fbb1683f0e169a6da61bd
golang-bin-1.26.10-1.el9_4.aarch64.rpm SHA-256: 14ab5284c38d3e0b14655a36fc06e16877c13de63d441611da2fc8e66fc31cc1
golang-docs-1.26.10-1.el9_4.noarch.rpm SHA-256: f5f0f8971f4ed4e813daa9cd916273473e77f04617dd965934fb78937849e494
golang-misc-1.26.10-1.el9_4.noarch.rpm SHA-256: d309484b8bd85702ab173f795aa25a8789dfa34e78d7c78df30d2da2c26e46c8
golang-race-1.26.10-1.el9_4.aarch64.rpm SHA-256: 4e7da42c05b4568221a1721f4ac210778baf7099f45d774a676feb52fc7bbe40
golang-src-1.26.10-1.el9_4.noarch.rpm SHA-256: 5d18c5cd246ca976414ae17ddfe8c2d6be10af3e0f61af8da35a69cf44b49de5
golang-tests-1.26.10-1.el9_4.noarch.rpm SHA-256: 41db38fcf2ad9a4f82aec0a0151a2748883e356b3333f2aac3b016063f314f02

Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4

SRPM
golang-1.26.10-1.el9_4.src.rpm SHA-256: c6b95f74fbc8ea6d51662f861646d501cd54695ad7ce073e358d74cf63b89691
s390x
go-toolset-1.26.10-1.el9_4.s390x.rpm SHA-256: d12c3933a56e9551dc869dd7eaf8f82647ca028bee8d5bd0238e0ef48dd6bc06
golang-1.26.10-1.el9_4.s390x.rpm SHA-256: 60a28a859def513175553dd7a9804600373e507da7d019e1660090073edd0fa2
golang-bin-1.26.10-1.el9_4.s390x.rpm SHA-256: ec7fa83c589989b9f11e8bbe82a2559ae94b750c5aab04c4a76639bc1e8d40ab
golang-docs-1.26.10-1.el9_4.noarch.rpm SHA-256: f5f0f8971f4ed4e813daa9cd916273473e77f04617dd965934fb78937849e494
golang-misc-1.26.10-1.el9_4.noarch.rpm SHA-256: d309484b8bd85702ab173f795aa25a8789dfa34e78d7c78df30d2da2c26e46c8
golang-race-1.26.10-1.el9_4.s390x.rpm SHA-256: 11afec11ac1e9d31010572be04d2961ff6f683104b9bdc9561bf1a6930ab5963
golang-src-1.26.10-1.el9_4.noarch.rpm SHA-256: 5d18c5cd246ca976414ae17ddfe8c2d6be10af3e0f61af8da35a69cf44b49de5
golang-tests-1.26.10-1.el9_4.noarch.rpm SHA-256: 41db38fcf2ad9a4f82aec0a0151a2748883e356b3333f2aac3b016063f314f02

Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.4

SRPM
golang-1.26.10-1.el9_4.src.rpm SHA-256: c6b95f74fbc8ea6d51662f861646d501cd54695ad7ce073e358d74cf63b89691
x86_64
go-toolset-1.26.10-1.el9_4.x86_64.rpm SHA-256: 68804d1b517f36b4460c111a670ef412012381b74f7c03e6d0971f8e4158b18b
golang-1.26.10-1.el9_4.x86_64.rpm SHA-256: f4dea9a33c75f0331a3ef64227d0aeecc3e4d315fa952c9a0bf67c0b410f5d6b
golang-bin-1.26.10-1.el9_4.x86_64.rpm SHA-256: 7d58e0c3019452d74e073b3ecc50d07f92e59f91f3dd5048d742fe908d6b98af
golang-docs-1.26.10-1.el9_4.noarch.rpm SHA-256: f5f0f8971f4ed4e813daa9cd916273473e77f04617dd965934fb78937849e494
golang-misc-1.26.10-1.el9_4.noarch.rpm SHA-256: d309484b8bd85702ab173f795aa25a8789dfa34e78d7c78df30d2da2c26e46c8
golang-race-1.26.10-1.el9_4.x86_64.rpm SHA-256: f2e7c05da751fbb06631502f4f3cfdbbb936c17a0f0474968a6f8a259736c04c
golang-src-1.26.10-1.el9_4.noarch.rpm SHA-256: 5d18c5cd246ca976414ae17ddfe8c2d6be10af3e0f61af8da35a69cf44b49de5
golang-tests-1.26.10-1.el9_4.noarch.rpm SHA-256: 41db38fcf2ad9a4f82aec0a0151a2748883e356b3333f2aac3b016063f314f02

Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.4

SRPM
golang-1.26.10-1.el9_4.src.rpm SHA-256: c6b95f74fbc8ea6d51662f861646d501cd54695ad7ce073e358d74cf63b89691
aarch64
go-toolset-1.26.10-1.el9_4.aarch64.rpm SHA-256: c2fb6dc63fbaf45da65ed85c752df798b72e0af227a7947457e8261a2b8ea094
golang-1.26.10-1.el9_4.aarch64.rpm SHA-256: 0619e3afc6d36e2713c3cdb2b0b26c6d48905c210d7fbb1683f0e169a6da61bd
golang-bin-1.26.10-1.el9_4.aarch64.rpm SHA-256: 14ab5284c38d3e0b14655a36fc06e16877c13de63d441611da2fc8e66fc31cc1
golang-docs-1.26.10-1.el9_4.noarch.rpm SHA-256: f5f0f8971f4ed4e813daa9cd916273473e77f04617dd965934fb78937849e494
golang-misc-1.26.10-1.el9_4.noarch.rpm SHA-256: d309484b8bd85702ab173f795aa25a8789dfa34e78d7c78df30d2da2c26e46c8
golang-race-1.26.10-1.el9_4.aarch64.rpm SHA-256: 4e7da42c05b4568221a1721f4ac210778baf7099f45d774a676feb52fc7bbe40
golang-src-1.26.10-1.el9_4.noarch.rpm SHA-256: 5d18c5cd246ca976414ae17ddfe8c2d6be10af3e0f61af8da35a69cf44b49de5
golang-tests-1.26.10-1.el9_4.noarch.rpm SHA-256: 41db38fcf2ad9a4f82aec0a0151a2748883e356b3333f2aac3b016063f314f02

Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.4

SRPM
golang-1.26.10-1.el9_4.src.rpm SHA-256: c6b95f74fbc8ea6d51662f861646d501cd54695ad7ce073e358d74cf63b89691
ppc64le
go-toolset-1.26.10-1.el9_4.ppc64le.rpm SHA-256: 630c946f62f2d02c5981c9567e87dcdb07812c3138be55a67177f3fae18d6021
golang-1.26.10-1.el9_4.ppc64le.rpm SHA-256: ffb0199846967c0ce91a7eb319a45318e993e13a93f48465281ba1413025c7b6
golang-bin-1.26.10-1.el9_4.ppc64le.rpm SHA-256: acc480246cd0f3a84440bfae6d2a56ad4caeb966b2b3d60e0fd9c500da8b8d08
golang-docs-1.26.10-1.el9_4.noarch.rpm SHA-256: f5f0f8971f4ed4e813daa9cd916273473e77f04617dd965934fb78937849e494
golang-misc-1.26.10-1.el9_4.noarch.rpm SHA-256: d309484b8bd85702ab173f795aa25a8789dfa34e78d7c78df30d2da2c26e46c8
golang-race-1.26.10-1.el9_4.ppc64le.rpm SHA-256: d37f47d83c77e139b50c1d25be27e85749f4b667223078ef24e090f089213dd7
golang-src-1.26.10-1.el9_4.noarch.rpm SHA-256: 5d18c5cd246ca976414ae17ddfe8c2d6be10af3e0f61af8da35a69cf44b49de5
golang-tests-1.26.10-1.el9_4.noarch.rpm SHA-256: 41db38fcf2ad9a4f82aec0a0151a2748883e356b3333f2aac3b016063f314f02

Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.4

SRPM
golang-1.26.10-1.el9_4.src.rpm SHA-256: c6b95f74fbc8ea6d51662f861646d501cd54695ad7ce073e358d74cf63b89691
s390x
go-toolset-1.26.10-1.el9_4.s390x.rpm SHA-256: d12c3933a56e9551dc869dd7eaf8f82647ca028bee8d5bd0238e0ef48dd6bc06
golang-1.26.10-1.el9_4.s390x.rpm SHA-256: 60a28a859def513175553dd7a9804600373e507da7d019e1660090073edd0fa2
golang-bin-1.26.10-1.el9_4.s390x.rpm SHA-256: ec7fa83c589989b9f11e8bbe82a2559ae94b750c5aab04c4a76639bc1e8d40ab
golang-docs-1.26.10-1.el9_4.noarch.rpm SHA-256: f5f0f8971f4ed4e813daa9cd916273473e77f04617dd965934fb78937849e494
golang-misc-1.26.10-1.el9_4.noarch.rpm SHA-256: d309484b8bd85702ab173f795aa25a8789dfa34e78d7c78df30d2da2c26e46c8
golang-race-1.26.10-1.el9_4.s390x.rpm SHA-256: 11afec11ac1e9d31010572be04d2961ff6f683104b9bdc9561bf1a6930ab5963
golang-src-1.26.10-1.el9_4.noarch.rpm SHA-256: 5d18c5cd246ca976414ae17ddfe8c2d6be10af3e0f61af8da35a69cf44b49de5
golang-tests-1.26.10-1.el9_4.noarch.rpm SHA-256: 41db38fcf2ad9a4f82aec0a0151a2748883e356b3333f2aac3b016063f314f02

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

Red Hat LinkedIn YouTube Facebook X, formerly Twitter

Quick Links

  • Downloads
  • Subscriptions
  • Support Cases
  • Customer Service
  • Product Documentation

Help

  • Contact Us
  • Customer Portal FAQ
  • Log-in Assistance

Site Info

  • Trust Red Hat
  • Browser Support Policy
  • Accessibility
  • Awards and Recognition
  • Colophon

Related Sites

  • redhat.com
  • developers.redhat.com
  • connect.redhat.com
  • cloud.redhat.com

Red Hat legal and privacy links

  • About Red Hat
  • Jobs
  • Events
  • Locations
  • Contact Red Hat
  • Red Hat Blog
  • Inclusion at Red Hat
  • Cool Stuff Store
  • Red Hat Summit
© 2026 Red Hat

Red Hat legal and privacy links

  • Privacy statement
  • Terms of use
  • All policies and guidelines
  • Digital accessibility