RLSA-2026:13673

Synopsis

Moderate: corosync security update

Description

The corosync packages provide the Corosync Cluster Engine and C APIs for Rocky 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.

Affected products

Rocky Linux 9 aarch64 Rocky Linux 9 ppc64le Rocky Linux 9 s390x Rocky Linux 9 x86_64

Fixes

2453813 2453814

CVEs

CVE-2026-35091 CVE-2026-35092

Affected packages

Rocky Linux 9 ppc64le - ResilientStorage

corosync-0:3.1.9-2.el9_7.1.ppc64le.rpm corosynclib-devel-0:3.1.9-2.el9_7.1.ppc64le.rpm

Rocky Linux 9 s390x - ResilientStorage

corosync-0:3.1.9-2.el9_7.1.s390x.rpm corosynclib-devel-0:3.1.9-2.el9_7.1.s390x.rpm

Rocky Linux 9 x86_64 - AppStream

corosync-0:3.1.9-2.el9_7.1.src.rpm corosync-debuginfo-0:3.1.9-2.el9_7.1.i686.rpm corosync-debuginfo-0:3.1.9-2.el9_7.1.x86_64.rpm corosync-debugsource-0:3.1.9-2.el9_7.1.i686.rpm corosync-debugsource-0:3.1.9-2.el9_7.1.x86_64.rpm corosynclib-0:3.1.9-2.el9_7.1.i686.rpm corosynclib-0:3.1.9-2.el9_7.1.x86_64.rpm corosynclib-debuginfo-0:3.1.9-2.el9_7.1.i686.rpm corosynclib-debuginfo-0:3.1.9-2.el9_7.1.x86_64.rpm

Rocky Linux 9 aarch64 - AppStream

corosync-0:3.1.9-2.el9_7.1.src.rpm corosync-debuginfo-0:3.1.9-2.el9_7.1.aarch64.rpm corosync-debugsource-0:3.1.9-2.el9_7.1.aarch64.rpm corosynclib-0:3.1.9-2.el9_7.1.aarch64.rpm corosynclib-debuginfo-0:3.1.9-2.el9_7.1.aarch64.rpm

Rocky Linux 9 s390x - AppStream

corosync-0:3.1.9-2.el9_7.1.src.rpm corosync-debuginfo-0:3.1.9-2.el9_7.1.s390x.rpm corosync-debugsource-0:3.1.9-2.el9_7.1.s390x.rpm corosynclib-0:3.1.9-2.el9_7.1.s390x.rpm corosynclib-debuginfo-0:3.1.9-2.el9_7.1.s390x.rpm

Rocky Linux 9 ppc64le - AppStream

corosync-0:3.1.9-2.el9_7.1.src.rpm corosync-debuginfo-0:3.1.9-2.el9_7.1.ppc64le.rpm corosync-debugsource-0:3.1.9-2.el9_7.1.ppc64le.rpm corosynclib-0:3.1.9-2.el9_7.1.ppc64le.rpm corosynclib-debuginfo-0:3.1.9-2.el9_7.1.ppc64le.rpm

Rocky Linux 9 x86_64 - ResilientStorage

corosync-0:3.1.9-2.el9_7.1.x86_64.rpm corosynclib-devel-0:3.1.9-2.el9_7.1.i686.rpm corosynclib-devel-0:3.1.9-2.el9_7.1.x86_64.rpm

Rocky Linux 9 aarch64 - CRB

corosync-vqsim-0:3.1.9-2.el9_7.1.aarch64.rpm corosync-vqsim-debuginfo-0:3.1.9-2.el9_7.1.aarch64.rpm

Rocky Linux 9 ppc64le - CRB

corosync-vqsim-0:3.1.9-2.el9_7.1.ppc64le.rpm corosync-vqsim-debuginfo-0:3.1.9-2.el9_7.1.ppc64le.rpm

Rocky Linux 9 s390x - CRB

corosync-vqsim-0:3.1.9-2.el9_7.1.s390x.rpm corosync-vqsim-debuginfo-0:3.1.9-2.el9_7.1.s390x.rpm

Rocky Linux 9 x86_64 - CRB

corosync-vqsim-0:3.1.9-2.el9_7.1.x86_64.rpm corosync-vqsim-debuginfo-0:3.1.9-2.el9_7.1.x86_64.rpm