Missing authorization in illumos zonestatd allows local users to disrupt zonestat and enumerate running zones
A missing authorization check in the illumos zones statistics daemon (zonestatd) allows a local user in any zone to disrupt zonestat in other zones and to determine which zones are running. The zonestatd door server procedure, zsd_server() in usr/src/cmd/zonestat/zonestatd/zonestatd.c, handles the ZSD_CMD_NEW_ZONE command, which is intended to be sent by zoneadmd, without checking the caller's credentials. Because the zonestatd door is accessible to all users in every zone, an unprivileged user can send this command with an arbitrary zone ID, causing zonestatd to re-create its door file in that zone, so that new zonestat requests in that zone can fail while the file is replaced. The time taken to handle the command also reveals whether a given zone ID belongs to a running zone. The flaw has existed since 2010 (illumos-gate commit efd4c9b6), and affects any illumos distribution prior to illumos-gate commit 865b58d2.
CVE-2026-104116
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-104116
illumos-gate
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
OmniOS
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/illumos/illumos-gate",
"vendor": "illumos",
"product": "illumos-gate",
"versions": [
{
"status": "affected",
"changes": [
{
"at": "865b58d24a0f1a31c838bffc3a7193d3345fe5ba",
"status": "unaffected"
}
],
"version": "efd4c9b63ad77503c101fc6c2ed8ba96c9d52964",
"lessThan": "865b58d24a0f1a31c838bffc3a7193d3345fe5ba",
"versionType": "git"
}
],
"platforms": [
"x86"
],
"packageName": "system/zones",
"programFiles": [
"usr/src/cmd/zonestat/zonestatd/zonestatd.c"
],
"collectionURL": "https://illumos.org",
"defaultStatus": "unaffected"
},
{
"vendor": "OmniOS",
"product": "OmniOS",
"versions": [
{
"status": "affected",
"version": "any",
"lessThan": "r151054",
"versionType": "custom"
},
{
"status": "affected",
"changes": [
{
"at": "r151058w",
"status": "unaffected"
}
],
"version": "r151058",
"lessThan": "r151058w",
"versionType": "custom"
},
{
"status": "affected",
"changes": [
{
"at": "r151056aw",
"status": "unaffected"
}
],
"version": "r151056",
"lessThan": "r151056aw",
"versionType": "custom"
},
{
"status": "affected",
"changes": [
{
"at": "r151054bw",
"status": "unaffected"
}
],
"version": "r151054",
"lessThan": "r151054bw",
"versionType": "custom"
}
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-104116
Source reference:
/cveMetadata/cveId
Publisher severity
low
Source reference: /containers/cna/metrics
- Event
- #16366 · Revision 1
- Added to Heist Feed
- Publisher date