Fluid Attacks Database

Description

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.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Component	Affected version	Patched versions
debian 12	lxd	=5.0.2+git20231211.1364ae4-1 \|\| =5.0.2+git20231211.1364ae4-2 \|\| =5.0.2+git20231211.1364ae4-3 \|\| =5.0.2+git20231211.1364ae4-4 \|\| =5.0.2+git20231211.1364ae4-5 \|\| =5.0.2+git20231211.1364ae4-6 \|\| =5.0.2+git20231211.1364ae4-7 \|\| =5.0.2+git20231211.1364ae4-8 \|\| =5.0.2+git20231211.1364ae4-9 \|\| =5.0.2-5 \|\| =5.0.2-5+deb12u1 \|\| =5.0.2-5+deb12u2 \|\| =5.0.2-5+deb12u3 \|\| =5.0.2-5+deb12u4 \|\| =5.0.2-5+deb12u5 \|\| =5.0.2-5+deb12u6 \|\| =5.0.2-6	-
debian 13	lxd	=5.0.2+git20231211.1364ae4-9 \|\| =5.0.2+git20231211.1364ae4-9+deb13u1 \|\| =5.0.2+git20231211.1364ae4-9+deb13u2 \|\| =5.0.2+git20231211.1364ae4-9+deb13u3 \|\| =5.0.2+git20231211.1364ae4-9+deb13u4 \|\| =5.0.2+git20231211.1364ae4-9+deb13u5 \|\| =5.0.2+git20231211.1364ae4-9+deb13u6 \|\| >=0 <5.0.2+git20231211.1364ae4-9+deb13u7	5.0.2+git20231211.1364ae4-9+deb13u7

Aliases

1. CVE-2026-96402. NVD-2026-96403. OSV-DEBIAN-2026-96404. OSV-2026-96405. SECURITY-TRACKER-CVE-2026-9640

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