Per https://illumos.topicbox.com/groups/developer/T3b859664594b7762-Maa764f8552227c7080bcaabc/cve-2026-104112-to-cve-2026-104117-denial-of-service-and-missing-authorization-in-door-servers illumos would like to report the following CVEs:

CVE-2026-104112 18494 nscd: unbounded file descriptor allocation

CVE-2026-104113 ipmgmtd double-frees caller credentials on authorization failure (OmniOS and SmartOS only, no general illumos issue)

CVE-2026-104114 18495 Empty nwamd Door payload allows Denial of Service

CVE-2026-104115 18496 Unauthenticated Stack Overflow in reparsed

CVE-2026-104116 18493 Missing doorucred Check in zonestatd

CVE-2026-104117 18492 Missing Authorization in ipmgmtd Allows IPMP Reconfiguration

These were all discovered by Robert French and James Wynne III.

Thank you, Dan McDonald, on behalf of illumos security

A missing release of resources in the illumos name service cache daemon (nscd) allows a local user to exhaust kernel memory. The nscd door server procedure, switcher() in usr/src/cmd/nscd/nscdfrontend.c, does not close file descriptors that are passed with a door call but not used by the request, and the main nscd door at /var/run/nameservicedoor accepts passed descriptors from any user in its zone. Because nscd also runs with an unlimited file descriptor limit, an unprivileged local user, including one in a non-global zone, can repeatedly pass a descriptor to its zone's nscd in a doorcall() loop, causing the file descriptor table of nscd to grow without bound in kernel memory. This causes a denial of service of nscd and can render processes in all zones on the host unresponsive. The flaw has existed since 2006 (illumos-gate commit cb5caa98), and affects any illumos distribution prior to illumos-gate commit af810a72.