Missing authorization in illumos zonestatd allows local users to disrupt zonestat and enumerate running zones
Summary
| CVE | CVE-2026-104116 |
|---|---|
| State | PUBLISHED |
| Assigner | illumos |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-09 15:17:07 UTC |
| Updated | 2026-10-09 16:35:35 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v4.0 1.9 LOW from 0ca53633-f0b5-4853-ba72-e0a2e62000d0
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | 0ca53633-f0b5-4853-ba72-e0a2e62000d0 | Secondary | 1.9 | LOW | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/C... |
| 4.0 | CNA | CVSS | 1.9 | LOW | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:P |
CVSS v4.0 Breakdown
Attack Vector
LocalAttack Complexity
LowAttack Requirements
NonePrivileges Required
LowUser Interaction
NoneConfidentiality
LowIntegrity
NoneAvailability
LowSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Illumos | Illumos-gate | affected efd4c9b63ad77503c101fc6c2ed8ba96c9d52964 865b58d24a0f1a31c838bffc3a7193d3345fe5ba git | x86 |
| CNA | OmniOS | OmniOS | affected any r151054 custom | Not specified |
| CNA | OmniOS | OmniOS | affected r151058 r151058w custom | Not specified |
| CNA | OmniOS | OmniOS | affected r151056 r151056aw custom | Not specified |
| CNA | OmniOS | OmniOS | affected r151054 r151054bw custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/illumos/illumos-gate/commit/865b58d24a0f1a31c838bffc3a7193d33... | 0ca53633-f0b5-4853-ba72-e0a2e62000d0 | github.com | |
| illumos.topicbox.com/groups/developer/T3b859664594b7762/cve-2026-104112-to-cve-202... | 0ca53633-f0b5-4853-ba72-e0a2e62000d0 | illumos.topicbox.com | |
| illumos.org/issues/18493 | 0ca53633-f0b5-4853-ba72-e0a2e62000d0 | illumos.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Robert French (en)
CNA: James Wynne III (en)
CNA: Dan McDonald (en)
Additional Advisory Data
Solutions
CNA: Update your illumos distribution to one that includes the fix for this issue.
There are currently no legacy QID mappings associated with this CVE.