CVE-2026-81666

CVE-2026-81666 affects the Corosync cluster communication library. The vulnerability resides in the check_memb_commit_token_sanity function, where an integer overflow in the expected message-length calculation on 32-bit systems bypasses the length-validation check for membership commit token mess...

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...

CVE-2026-35091 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...