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9.9 Critical

CVE-2026-66898 A path traversal vulnerability in LXD allows an attacker to manipulate file system paths during backup import and…

Description

A path traversal vulnerability in LXD allows an attacker to manipulate file system paths during backup import and restore operations. When importing or restoring a backup archive, LXD fails to validate instance and storage volume names contained within the archive metadata. An attacker can exploit this flaw by supplying a crafted backup archive with malicious instance or volume names containing path traversal sequences, potentially allowing file access or overwriting outside the designated restore directory.

Affected products and versions

Product Affected versions Fixed in
LXD 6.0 6.0 → < 6.1 6.1
LXD 5.21 5.21.0 → < 5.21.2 5.21.2
LXD 5.0 5.0.0 → < 5.0.4 5.0.4
LXD 4.0 4.0.0 → < 4.0.12 4.0.12

References

Timeline

  1. Published
  2. Last modified

Other CVEs of LXD

The 47 CVEs of LXD →
CVE-2026-112816 Improper certificate validation in the HTTPS listener in Canonical LXD 4.0.14, 5.0.10, 5.21.8, 6.9 before 4.0.15,… 10.0 Critical CVE-2026-87798 Improper link resolution in the recursive file pull feature of the LXD CLI client in Canonical LXD versions 4.0.2 up… 5.8 Medium CVE-2026-87799 Improper link resolution in the migration receive path in Canonical LXD versions 4.0 and later (fixed in 4.0.14, 5.0.10,… 9.9 Critical CVE-2026-97335 Incorrect authorization in the custom storage volume creation endpoint in Canonical LXD versions 5.0.0 and later… 7.7 High
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