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RLSA-2026:67872

Security Mirrored from RHSA-2026:67872
Issued at: 2026-09-17
Updated at: 2026-09-18

Advisory content derived from Red Hat RHSA-2026:67872, © Red Hat, Inc., used under CC BY 4.0, with modifications.

Synopsis

Important: 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: heap-based buffer overflow in totempg assembly buffer during fragmented message reassembly (CVE-2026-81665)

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 10 aarch64 Rocky Linux 10 ppc64le Rocky Linux 10 riscv64 Rocky Linux 10 s390x Rocky Linux 10 x86_64

Fixes

2524910

CVEs

CVE-2026-81665

Affected packages

Rocky Linux 10 s390x - AppStream

corosync-debuginfo-0:3.1.10-1.el10_2.2.s390x.rpm corosynclib-0:3.1.10-1.el10_2.2.s390x.rpm corosynclib-debuginfo-0:3.1.10-1.el10_2.2.s390x.rpm corosync-debugsource-0:3.1.10-1.el10_2.2.s390x.rpm corosync-0:3.1.10-1.el10_2.2.src.rpm

Rocky Linux 10 x86_64 - AppStream

corosync-debuginfo-0:3.1.10-1.el10_2.2.x86_64.rpm corosynclib-0:3.1.10-1.el10_2.2.x86_64.rpm corosynclib-debuginfo-0:3.1.10-1.el10_2.2.x86_64.rpm corosync-0:3.1.10-1.el10_2.2.src.rpm corosync-debugsource-0:3.1.10-1.el10_2.2.x86_64.rpm

Rocky Linux 10 ppc64le - AppStream

corosync-debugsource-0:3.1.10-1.el10_2.2.ppc64le.rpm corosynclib-0:3.1.10-1.el10_2.2.ppc64le.rpm corosynclib-debuginfo-0:3.1.10-1.el10_2.2.ppc64le.rpm corosync-0:3.1.10-1.el10_2.2.src.rpm corosync-debuginfo-0:3.1.10-1.el10_2.2.ppc64le.rpm

Rocky Linux 10 aarch64 - AppStream

corosynclib-debuginfo-0:3.1.10-1.el10_2.2.aarch64.rpm corosync-debuginfo-0:3.1.10-1.el10_2.2.aarch64.rpm corosynclib-0:3.1.10-1.el10_2.2.aarch64.rpm corosync-debugsource-0:3.1.10-1.el10_2.2.aarch64.rpm corosync-0:3.1.10-1.el10_2.2.src.rpm

Rocky Linux 10 x86_64 - CRB

corosync-vqsim-0:3.1.10-1.el10_2.2.x86_64.rpm corosync-vqsim-debuginfo-0:3.1.10-1.el10_2.2.x86_64.rpm

Rocky Linux 10 ppc64le - CRB

corosync-vqsim-0:3.1.10-1.el10_2.2.ppc64le.rpm corosync-vqsim-debuginfo-0:3.1.10-1.el10_2.2.ppc64le.rpm

Rocky Linux 10 s390x - CRB

corosync-vqsim-debuginfo-0:3.1.10-1.el10_2.2.s390x.rpm corosync-vqsim-0:3.1.10-1.el10_2.2.s390x.rpm

Rocky Linux 10 aarch64 - CRB

corosync-vqsim-debuginfo-0:3.1.10-1.el10_2.2.aarch64.rpm corosync-vqsim-0:3.1.10-1.el10_2.2.aarch64.rpm

Rocky Linux 10 riscv64 - AppStream

corosync-0:3.1.10-1.el10_2.2.src.rpm