RHSA-2026:29980: Moderate: golang security, bug fix, and enhancement update

Published Jun 25, 2026
·
Updated

Moderate: golang security, bug fix, and enhancement update

Other sources

The golang packages provide the Go programming language compiler.Security Fix(es): net/textproto: golang: Golang net/textproto: Misleading error messages via input injection (CVE-2026-42507) Bug Fix(es) and Enhancement(s): Update Go to version 1.26.4+1 [rhel-10.2.z] (JIRA:RHEL-183347) 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 ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
redhat/golang<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/go-toolset<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/golang<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/golang-bin<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/golang-docs<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/golang-misc<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/golang-race<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/golang-src<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/golang-tests<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/go-toolset<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/golang-bin<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/golang-race<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/go-toolset<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/golang<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/golang-bin<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/golang-race<1.26.4-1.el10_2
1.26.4-1.el10_2
redhat/go-toolset<1.26.4-1.el10_2.aa
1.26.4-1.el10_2.aa
redhat/golang<1.26.4-1.el10_2.aa
1.26.4-1.el10_2.aa
redhat/golang-bin<1.26.4-1.el10_2.aa
1.26.4-1.el10_2.aa
redhat/golang-race<1.26.4-1.el10_2.aa
1.26.4-1.el10_2.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 1.26.4-1.el10_2
  2. Upgrade

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

    Fixed in 1.26.4-1.el10_2
  3. Upgrade

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

    Fixed in 1.26.4-1.el10_2
  4. Upgrade

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

    Fixed in 1.26.4-1.el10_2
  5. Upgrade

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

    Fixed in 1.26.4-1.el10_2
  6. Upgrade

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

    Fixed in 1.26.4-1.el10_2
  7. Upgrade

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

    Fixed in 1.26.4-1.el10_2
  8. Upgrade

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

    Fixed in 1.26.4-1.el10_2
  9. Upgrade

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

    Fixed in 1.26.4-1.el10_2.aa
  10. Upgrade

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

    Fixed in 1.26.4-1.el10_2.aa
  11. Upgrade

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

    Fixed in 1.26.4-1.el10_2.aa
  12. Upgrade

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

    Fixed in 1.26.4-1.el10_2.aa
  13. Upgrade

    Upgrade Go (golang) to a version that resolves this vulnerability.

    Fixed in 1.26.4+1Patch rhel-10.2.z
  14. Compensating control

    If Go is used in a context where net/textproto parses untrusted input, treat input as untrusted and validate/sanitize it to reduce the risk of misleading error messages via input injection (CVE-2026-42507) until the Go update is applied.

Event History

Jun 25, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·03:06 PM
Data Sourced
via Red Hat·03:06 PM
Severity

Frequently Asked Questions

1

What is the severity of RHSA-2026:29980?

The severity of RHSA-2026:29980 is classified as medium with a score of 4.

2

What security fix is addressed in RHSA-2026:29980?

RHSA-2026:29980 addresses a misleading error message vulnerability in golang net/textproto identified by CVE-2026-42507.

3

How do I fix RHSA-2026:29980?

To fix RHSA-2026:29980, update the golang packages to the latest version provided by Red Hat.

4

What are the affected software packages in RHSA-2026:29980?

Affected software packages include redhat/golang, redhat/go-toolset, redhat/golang-bin, and redhat/golang-race.

5

What enhancements are included in RHSA-2026:29980?

RHSA-2026:29980 includes bug fixes and enhancements in addition to the security updates for golang.

Company

Resources

Contact

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