CVE-2026-40195
Description
Incus is a system container and virtual machine manager. In versions before 7.0.0, missing validation logic in the storage bucket import logic allows an authenticated user with access to the storage bucket feature to cause the Incus daemon to crash. The vulnerability is present in the backup metadata handling logic, where the daemon processes the index.yaml file from an imported archive and accesses members of the parsed backup configuration without first verifying that the configuration object was initialized. A malicious or malformed index.yaml that omits the config block causes a nil-pointer dereference during bucket import operations and terminates the daemon. Repeated use of this issue can be used to keep Incus offline, causing a denial of service. This issue is fixed in version 7.0.0.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 3 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 6.0.4-2+deb13u7 |
| sid | Fixed | 7.0.0-1 |
| forky | Fixed | 7.0.0-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/lxc/incus/v6/cmd/incusd | <7.0.0 | 7.0.0 |
| GO | github.com/lxc/incus/v6/cmd/incusd | < 7.0.0 | 7.0.0 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| linuxcontainers | incus | {"endExcluding":"7.0.0"} | 7.0.0 |
References
CWEs
CWE-476
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.