Corosync Corosync vulnerabilities
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Published CVEs affecting Corosync Corosync: 2 record(s), with affected versions and fixes.cpe:2.3:a:corosync:corosync
CVE-2026-35092
High · 7.5
CWE-190 Apr 1, 2026
Corosync: corosync: denial of service via integer overflow in join message validation
A flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol (UDP) packets. This can cause the service to crash, leading to a denial of service. This vulnerability specifically affects Corosync deployments configured to use totemudp/totemudpu mode.
CVE-2026-35091
High · 8.2
CWE-253 Apr 1, 2026
Corosync: corosync: denial of service and information disclosure via crafted udp packet
A flaw was found in Corosync. A remote unauthenticated attacker can exploit a wrong return value vulnerability in the Corosync membership commit token sanity check by sending a specially crafted User Datagram Protocol (UDP) packet. This can lead to an out-of-bounds read, causing a denial of service (DoS) and potentially disclosing limited memory contents