CVE-2026-9639

Summary

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.

Affected Software

VendorProductVersion RangeStatus
CanonicalLXD5.21.0 < 5.21.5affected
CanonicalLXD6.0 < 6.9affected

Weaknesses

  • CWE-476: CWE-476 NULL pointer dereference

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: partial

Additional References

References