RHSA-2026:60304: Important: golang security, bug fix, and enhancement update

Published Aug 26, 2026
·
Updated

Important: golang security, bug fix, and enhancement update

Other sources

The golang packages provide the Go programming language compiler.Security Fix(es): encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818) net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860) net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853) html/template: golang: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858) crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862) encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue (CVE-2026-56859) Bug Fix(es) and Enhancement(s): Go 1.26 -- maxThreads limit hit in CGO threads blocked on RANDbytes in FIPS mode (JIRA:RHEL-215845) Update Go to version 1.26.7+1 [rhel-9.8.z] (JIRA:RHEL-246425) 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.

— Red Hat

Affected Software

36 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64
redhat/golang<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/go-toolset<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/golang<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/golang-bin<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/golang-docs<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/golang-misc<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/golang-race<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/golang-src<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/golang-tests<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/go-toolset<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/golang-bin<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/golang-race<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/go-toolset<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/golang<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/golang-bin<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/golang-race<1.26.7-1.el9_8
1.26.7-1.el9_8
redhat/go-toolset<1.26.7-1.el9_8.aa
1.26.7-1.el9_8.aa
redhat/golang<1.26.7-1.el9_8.aa
1.26.7-1.el9_8.aa
redhat/golang-bin<1.26.7-1.el9_8.aa
1.26.7-1.el9_8.aa
redhat/golang-race<1.26.7-1.el9_8.aa
1.26.7-1.el9_8.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/golang to a version that resolves this vulnerability.

    Fixed in 1.26.7-1.el9_8
  2. Upgrade

    Upgrade redhat/go-toolset to a version that resolves this vulnerability.

    Fixed in 1.26.7-1.el9_8
  3. Upgrade

    Upgrade redhat/golang-bin to a version that resolves this vulnerability.

    Fixed in 1.26.7-1.el9_8
  4. Upgrade

    Upgrade redhat/golang-docs to a version that resolves this vulnerability.

    Fixed in 1.26.7-1.el9_8
  5. Upgrade

    Upgrade redhat/golang-misc to a version that resolves this vulnerability.

    Fixed in 1.26.7-1.el9_8
  6. Upgrade

    Upgrade redhat/golang-race to a version that resolves this vulnerability.

    Fixed in 1.26.7-1.el9_8
  7. Upgrade

    Upgrade redhat/golang-src to a version that resolves this vulnerability.

    Fixed in 1.26.7-1.el9_8
  8. Upgrade

    Upgrade redhat/golang-tests to a version that resolves this vulnerability.

    Fixed in 1.26.7-1.el9_8
  9. Upgrade

    Upgrade redhat/go-toolset to a version that resolves this vulnerability.

    Fixed in 1.26.7-1.el9_8.aa
  10. Upgrade

    Upgrade redhat/golang to a version that resolves this vulnerability.

    Fixed in 1.26.7-1.el9_8.aa
  11. Upgrade

    Upgrade redhat/golang-bin to a version that resolves this vulnerability.

    Fixed in 1.26.7-1.el9_8.aa
  12. Upgrade

    Upgrade redhat/golang-race to a version that resolves this vulnerability.

    Fixed in 1.26.7-1.el9_8.aa
  13. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.26.7+1Patch RHEL-246425
  14. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch CVE-2026-56862
  15. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch CVE-2026-56859
  16. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch CVE-2026-56858
  17. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch CVE-2026-56853
  18. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch CVE-2026-56860
  19. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch RHEL-215845
  20. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch CVE-2026-33818

Event History

Aug 26, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·12:34 PM
Data Sourced
via Red Hat·12:34 PM
Severity

Frequently Asked Questions

1

Which Go components are implicated by the security fixes?

The fixes affect encoding/asn1, net/url, net/http, html/template, crypto/tls, and encoding/xml. The reported impacts include denial of service in several components and cross-site scripting in html/template.

2

What update level is identified in this advisory?

The advisory states that Go is updated to version 1.26.7+1 for rhel-9.8.z.

3

Are there non-security changes included in this update?

Yes. It includes a fix for maxThreads-limit failures involving CGO threads blocked on RAND_bytes when FIPS mode is enabled.

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