Vulnerability Details CVE-2026-101303
The IPv6 UDP send path for unconnected sockets did not apply the jail policy of rewriting a loopback destination address to the jail's primary IPv6 address.
A process in a classic (non-VNET) jail can send UDP datagrams to services listening on the host's IPv6 loopback address, bypassing jail network isolation.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 28.7%
CVSS Severity
CVSS v3 Score 7.5