Red Hat Corosync Security Update: CVE-2026-35091 & CVE-2026-35092 (DoS/Info Leak)

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Security AdvisoryRHSA-2026:13644MediumRed Hat

Affected:

Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems 10 s390x
Red Hat Enterprise Linux for Power, little endian 10 ppc64le
Red Hat Enterprise Linux High Availability for x86_64 10 x86_64
Red Hat Enterprise Linux High Availability for ARM 64 aarch64

Fixed in:

corosync-3.1.9-2.el10_1.1

Referenced CVEs: CVE-2026-35092 · 7.5 CVE-2026-35091 · 8.2

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RHSA-2026:13414: X.Org X Server & TigerVNC Vulnerabilities (DOS/UAF/Info Leak) 2026-05-11 RHSA-2026:14215 Corosync Vulnerability Advisory (CVE-2026-35091, CVE-2026-35092) 2026-05-10 Red Hat OpenShell oc debug Sensitive Information Disclosure Vulnerability (CVE-2024-21630) Advisory 2026-05-10 Red Hat Hardened Images gnutls Security Advisory RHSA-2026:13274 2026-05-10 RHSA-2026:14214 Corosync Security Advisory (CVE-2026-35091/35092) 2026-05-09

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