CVE-2026-23556
Critical
Description
When oxenstored is tearing a domain down, the node data is cleaned up but the usage counts are leaked. When the domain ID is eventually reused, the new domain can create fewer nodes before beeing deemed to be over quota.
SeverityCritical
CVSS9.4
Exploit probability—
ProductOxenstored
PublishedJul 9, 2026
First seenJul 9, 2026
Weakness typeCWE-281CWE-281
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Xen oxenstored | No range specified | — |
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