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CVE-2026-66898 Path traversal via unvalidated instance name in backup tarball restore enables root file write / RCE

🗓️ 12 Aug 2026 20:07:32Reported by canonicalType 
cvelist
 cvelist
🔗 www.cve.org👁 9 Views

LXD path traversal in backup restore via unvalidated instance names enables root file write and RCE.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-66898
12 Aug 202620:07
attackerkb
circl
Circl
CVE-2026-66898
12 Aug 202621:30
circl
cve
CVE
CVE-2026-66898
12 Aug 202620:07
cve
euvd
EUVD
EUVD-2026-57545
12 Aug 202620:07
euvd
nvd
NVD
CVE-2026-66898
12 Aug 202621:17
nvd
[
  {
    "vendor": "Canonical",
    "product": "LXD",
    "packageName": "LXD",
    "platforms": [
      "Linux"
    ],
    "repo": "https://github.com/canonical/lxd",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "version": "4.0.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "4.0.12"
      },
      {
        "version": "5.0.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "5.0.4"
      },
      {
        "version": "5.21.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "5.21.2"
      },
      {
        "version": "6.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "6.1"
      }
    ]
  }
]

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