Unrated severityNVD Advisory· Published Oct 15, 2026
CVE-2026-101303
CVE-2026-101303
Description
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.
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Affected products
1Patches
Vulnerability mechanics
References
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