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

35 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

Remediation

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.

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