A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.
https://lists.debian.org/debian-lts-announce/2024/02/msg00004.html
https://bugzilla.redhat.com/show_bug.cgi?id=2006347