| Name | CVE-2026-23556 |
| 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| xen (PTS) | bullseye | 4.14.6-1 | vulnerable |
| bullseye (security) | 4.14.5+94-ge49571868d-1 | vulnerable |
| bookworm, bookworm (security) | 4.17.5+72-g01140da4e8-1 | vulnerable |
| trixie | 4.20.2+37-g61ff35323e-0+deb13u1 | vulnerable |
| trixie (security) | 4.20.2+7-g1badcf5035-0+deb13u1 | vulnerable |
| forky, sid | 4.20.2+37-g61ff35323e-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| xen | source | bullseye | (unfixed) | end-of-life | | |
| xen | source | (unstable) | (unfixed) | | | |
Notes
[trixie] - xen <no-dsa> (Minor issue)
[bookworm] - xen <no-dsa> (Minor issue)
[bullseye] - xen <end-of-life> (EOLed in Bullseye)
https://xenbits.xen.org/xsa/advisory-483.html