{"id":"CVE-2026-86334","summary":"CLI Path Traversal via Content-Disposition in LXD Image Export/Copy","details":"Path traversal in the CLI client image export and copy functionality in Canonical LXD from 4.0.2 before 4.0.14, 5.0.10, 5.21.8, and 6.10 on all platforms allows a remote malicious or machine-in-the-middle image server to overwrite arbitrary local files and execute code on the client system via a crafted Content-Disposition header filename parameter during unified image export or copy operations into a local directory target.","aliases":["GHSA-g4cm-f533-78hq"],"modified":"2026-09-30T03:47:28.668200404Z","published":"2026-09-28T13:21:15.612Z","database_specific":{"cwe_ids":["CWE-22"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86334.json","unresolved_ranges":[{"extracted_events":[{"introduced":"6.0"},{"fixed":"6.10"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"canonical"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86334.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86334"},{"type":"REPORT","url":"https://github.com/canonical/lxd/security/advisories/GHSA-g4cm-f533-78hq"},{"type":"FIX","url":"https://github.com/canonical/lxd/pull/18940"},{"type":"FIX","url":"https://github.com/canonical/lxd/pull/18974"},{"type":"FIX","url":"https://github.com/canonical/lxd/pull/18975"},{"type":"FIX","url":"https://github.com/canonical/lxd/pull/18976"},{"type":"FIX","url":"https://github.com/canonical/lxd/pull/18977"},{"type":"PACKAGE","url":"https://github.com/canonical/lxd"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/canonical/lxd","events":[{"introduced":"2d1c49501c77c54fbdec3154b38736b6ba114501"},{"fixed":"b6e6806eef1ffb9be88d80af840f82d762ba1e38"},{"introduced":"1e1349e3cbf30c1b2ce74e531d4dd0fd52c45be1"},{"fixed":"6dbdad8c58bbabc680340c61d238255cccece068"},{"introduced":"761d134ceabd306f57acfb0ca51f59b03751a5b0"},{"fixed":"a60b9e26b2e4b8a3353e29d8be45eb623ad16ead"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"4.0.2"},{"fixed":"4.0.14"},{"introduced":"5.0.0"},{"fixed":"5.0.10"},{"introduced":"5.21.0"},{"fixed":"5.21.8"}]}}],"versions":["lxd-4.0.13","lxd-5.0.9","lxd-5.21.7","lxd-4.0.12","lxd-5.21.6","lxd-5.0.8","lxd-5.0.7","lxd-5.21.5","show","lxd-4.0.11","lxd-4.0.9","lxd-5.17","lxd-5.16","lxd-5.15","lxd-5.14","lxd-5.13","lxd-5.12","lxd-5.11","lxd-5.0.2","lxd-5.10","lxd-5.9","lxd-5.8","lxd-5.7","lxd-5.6","lxd-5.5","lxd-5.0.1","lxd-5.4","lxd-5.3","lxd-5.2","lxd-5.1","lxd-5.0.0","lxd-4.0.8","lxd-4.0.7","lxd-4.0.6","lxd-4.0.5","lxd-4.0.4","lxd-4.0.3","lxd-4.0.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-86334.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L"}]}