HIGHCVSS v3.1 7.5Vulnerability

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.

Properties

Severity
HIGH
Nvd fetched at
2026-10-20T21:14:08.448323+00:00
Epss score
0.00363
Cvss severity
HIGH
Cvss score
7.5
Retrieved at
2026-10-21T01:24:48+00:00
Last source
FIRST EPSS
Score
7.5
Cvss version
3.1
Cve id
CVE-2026-101303
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
First seen by Signal
2026-10-18T13:39:03+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published at
2026-10-15T07:17:57.437
Last modified
2026-10-20T00:17:27.083
Epss percentile
0.287

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CVE-2026-101303 (CVSS v3.1 7.5) — Ninja Signal Threat Intelligence | Ninja Signal