MinorCritical vulnerability
CVE-2026-101303 (CVSS 7.5)
NVD · officialPublished Oct 15, 2026Risk 23/100EPSS 0.2%
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.
Technical details
CVSS
7.5
AV:NetworkAC:LowPR:NoneUI:NoneC:NoneI:HighA:None
Evidence and sources
This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.
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