Detections
Analytics
CVE-2026-9639
medium
Description
Nil-pointer dereference in CreateCustomVolumeFromBackup in LXD up to version 6.8 and 5.21 on Linux allows an authenticated user with can_create_storage_volumes permissions to cause a denial of service via a specially crafted custom-volume backup tarball that omits the expires_at snapshot field.
References
https://github.com/canonical/lxd/security/advisories/GHSA-j93m-3j9p-m5m8
https://github.com/canonical/lxd/releases/tag/lxd-6.9
https://github.com/canonical/lxd/releases/tag/lxd-5.21.5
https://github.com/canonical/lxd/pull/18390
https://github.com/canonical/lxd/pull/18320
https://github.com/canonical/lxd/commit/d15520809e6e2ac2af0c6354dfb7be5854b0e859
https://github.com/canonical/lxd/commit/c7cdfadb6044dfeaac592dc225978b4125ee23fe
https://github.com/canonical/lxd/commit/05bc2729e99707a766d5c4705167a3322c9ef424
https://github.com/canonical/lxd/blob/lxd-5.0.7/lxd/storage/backend_lxd.go
https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/9xxx/CVE-2026-9639.json