CVE-2026-9640 Affecting lxd package, versions <5.0.2+git20231211.1364ae4-9+deb13u7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published27 Jun 2026
- disclosed26 Jun 2026
Introduced: 26 Jun 2026
CVE-2026-9640 (opens in a new tab)How to fix?
Upgrade Debian:13 lxd to version 5.0.2+git20231211.1364ae4-9+deb13u7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream lxd package and not the lxd package as distributed by Debian.
See How to fix? for Debian:13 relevant fixed versions and status.
A privilege escalation vulnerability exists in LXD from 6.0 before 6.9, 5.21.0 before 5.21.5, and 5.0.0 before 5.0.7 regarding the handling of project-restriction policies during snapshot restoration.. An authenticated project operator in a restricted multi-tenant environment can bypass policy restrictions by importing a maliciously crafted instance backup containing restricted configuration keys within a snapshot. When the snapshot is restored, these restricted keys are applied to the live instance without policy validation. Starting the modified instance grants the operator unauthorized host root access.