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.
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| FreeBSD | FreeBSD | unknown |
|
No data.
No data.
No data available yet.
No solution or workaround provided in the CVE record.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
Sign in to view the affected projects.
No advisories yet.
Thu, 15 Oct 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | IPv6 UDP sendto(2) bypasses jail loopback restriction | |
| Weaknesses | CWE-941 | |
| References |
|
Subscriptions
No data.
MITRE
Status: PUBLISHED
Assigner: freebsd
Published:
Updated: 2026-10-15T06:58:55.833Z
Reserved: 2026-09-28T13:33:02.323Z
Link: CVE-2026-101303
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-10-15T07:17:57.437
Modified: 2026-10-15T07:17:57.437
Link: CVE-2026-101303
Redhat
No data.
OpenCVE Enrichment
No data.