RHSA-2026:14214: Moderate: corosync security update

Published May 6, 2026
·
Updated

Moderate: corosync security update

Other sources

The corosync packages provide the Corosync Cluster Engine and C APIs for Red Hat Enterprise Linux cluster software.Security Fix(es): corosync: Corosync: Denial of Service and information disclosure via crafted UDP packet (CVE-2026-35091) corosync: Corosync: Denial of Service via integer overflow in join message validation (CVE-2026-35092) 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

41 affected componentsFixes available
Red Hat Red Hat Enterprise Linux High Availability for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux Server - AUS
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux High Availability for x86_64 - Extended Update Support Extension
Red Hat Red Hat Enterprise Linux High Availability for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension
Red Hat Red Hat Enterprise Linux High Availability for x86_64 - Telecommunications Update Service
Red Hat Red Hat Enterprise Linux Server - TUS
redhat/corosync<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosync-debuginfo<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosync-debuginfo<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosync-debugsource<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosync-debugsource<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosync-vqsim-debuginfo<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosync-vqsim-debuginfo<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosynclib<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosynclib<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosynclib-debuginfo<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosynclib-debuginfo<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/spausedd-debuginfo<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/spausedd-debuginfo<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosync-debuginfo<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosync-debugsource<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosync-vqsim-debuginfo<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosynclib<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosynclib-debuginfo<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/spausedd-debuginfo<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosync<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosynclib-devel<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/spausedd<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosync<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosynclib-devel<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosynclib-devel<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/spausedd<3.1.5-2.el8_6.1
3.1.5-2.el8_6.1
redhat/corosync-debuginfo<3.1.5-2.el8_6.1.aa
3.1.5-2.el8_6.1.aa
redhat/corosync-debugsource<3.1.5-2.el8_6.1.aa
3.1.5-2.el8_6.1.aa
redhat/corosync-vqsim-debuginfo<3.1.5-2.el8_6.1.aa
3.1.5-2.el8_6.1.aa
redhat/corosynclib<3.1.5-2.el8_6.1.aa
3.1.5-2.el8_6.1.aa
redhat/corosynclib-debuginfo<3.1.5-2.el8_6.1.aa
3.1.5-2.el8_6.1.aa
redhat/spausedd-debuginfo<3.1.5-2.el8_6.1.aa
3.1.5-2.el8_6.1.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 3.1.5-2.el8_6.1
  2. Upgrade

    Upgrade redhat/corosync-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.1.5-2.el8_6.1
  3. Upgrade

    Upgrade redhat/corosync-debugsource to a version that resolves this vulnerability.

    Fixed in 3.1.5-2.el8_6.1
  4. Upgrade

    Upgrade redhat/corosync-vqsim-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.1.5-2.el8_6.1
  5. Upgrade

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

    Fixed in 3.1.5-2.el8_6.1
  6. Upgrade

    Upgrade redhat/corosynclib-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.1.5-2.el8_6.1
  7. Upgrade

    Upgrade redhat/spausedd-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.1.5-2.el8_6.1
  8. Upgrade

    Upgrade redhat/corosynclib-devel to a version that resolves this vulnerability.

    Fixed in 3.1.5-2.el8_6.1
  9. Upgrade

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

    Fixed in 3.1.5-2.el8_6.1
  10. Upgrade

    Upgrade redhat/corosync-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.1.5-2.el8_6.1.aa
  11. Upgrade

    Upgrade redhat/corosync-debugsource to a version that resolves this vulnerability.

    Fixed in 3.1.5-2.el8_6.1.aa
  12. Upgrade

    Upgrade redhat/corosync-vqsim-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.1.5-2.el8_6.1.aa
  13. Upgrade

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

    Fixed in 3.1.5-2.el8_6.1.aa
  14. Upgrade

    Upgrade redhat/corosynclib-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.1.5-2.el8_6.1.aa
  15. Upgrade

    Upgrade redhat/spausedd-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.1.5-2.el8_6.1.aa
  16. Upgrade

    Upgrade corosync to a version that resolves this vulnerability.

    Patch CVE-2026-35092
  17. Upgrade

    Upgrade corosync to a version that resolves this vulnerability.

    Patch CVE-2026-35091

Event History

May 6, 2026
Advisory Published
via Red Hat·03:54 PM
Data Sourced
via Red Hat·03:54 PM
DescriptionSeverityAffected Software
May 13, 2026
Advisory Published
via Red Hat·02:12 AM
Data Sourced
via Red Hat·02:12 AM
Remedy

Frequently Asked Questions

1

What is the severity of RHSA-2026:14214?

The severity of RHSA-2026:14214 is classified as moderate.

2

What vulnerabilities are addressed in RHSA-2026:14214?

RHSA-2026:14214 addresses a denial of service and information disclosure vulnerability via crafted UDP packets.

3

How do I fix RHSA-2026:14214?

To fix RHSA-2026:14214, update the corosync packages to version 3.1.5-2.el8_6.1 or later.

4

Which Red Hat products are affected by RHSA-2026:14214?

RHSA-2026:14214 affects various versions of Red Hat Enterprise Linux, particularly those with corosync installed.

5

Is there a workaround for RHSA-2026:14214?

There is no official workaround for RHSA-2026:14214; applying the security update is recommended.

Company

Resources

Contact

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