CVE-2026-66898
- Source
- https://cve.org/CVERecord?id=CVE-2026-66898
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66898.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-66898
- Aliases
-
- GHSA-m857-c7gc-c984
- Downstream
- Related
- Published
- 2026-08-12T20:07:32Z
- Modified
- 2026-09-13T03:46:09Z
- Severity
-
- 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- Path traversal via unvalidated instance name in backup tarball restore enables root file write / RCE
- Details
-
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.
- Database specific
{ "cna_assigner": "canonical", "cwe_ids": [ "CWE-22" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66898.json" }- References
Affected packages
Git / github.com/canonical/lxd
Affected ranges
- Type
- GIT
- Repo
- https://github.com/canonical/lxd
- Events
- Database specific
-
Show details
{ "cpe": "cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "4.0.0" }, { "fixed": "4.0.12" }, { "introduced": "5.0.0" }, { "fixed": "5.0.4" }, { "introduced": "5.1" }, { "fixed": "5.21.2" } ], "source": "CPE_RANGE" }
Affected versions
lxd-4.*
lxd-4.0.0
lxd-4.0.1
lxd-4.0.11
lxd-4.0.2
lxd-4.0.3
lxd-4.0.4
lxd-4.0.5
lxd-4.0.6
lxd-4.0.7
lxd-4.0.8
lxd-4.0.9
lxd-5.*
lxd-5.0.0
lxd-5.0.1
lxd-5.0.2
lxd-5.1
lxd-5.10
lxd-5.11
lxd-5.12
lxd-5.13
lxd-5.14
lxd-5.15
lxd-5.16
lxd-5.17
lxd-5.2
lxd-5.3
lxd-5.4
lxd-5.5
lxd-5.6
lxd-5.7
lxd-5.8
lxd-5.9
Other
show