CVE-2026-112816

{
  "id": "CVE-2026-112816",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-30T17:17:14.293",
  "lastModified": "2026-10-30T18:17:21.363",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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, 5.0.11, 5.21.9, 6.10.1 allows an unauthenticated attacker to authenticate as any trusted client and gain full access to the cluster and managed virtual machines via a crafted certificate chain."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Canonical",
          "product": "LXD",
          "defaultStatus": "unaffected",
          "collectionURL": "https://canonical.com/lxd",
          "packageName": "lxd",
          "platforms": [
            "Linux"
          ],
          "repo": "https://github.com/canonical/lxd",
          "versions": [
            {
              "version": "4.0.14",
              "lessThan": "4.0.15",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "5.0.10",
              "lessThan": "5.0.11",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "5.21.8",
              "lessThan": "5.21.9",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "6.9.0",
              "lessThan": "6.10.1",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 10.0,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "HIGH",
          "subAvailabilityImpact": "HIGH",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-30T17:02:09.413887Z",
          "id": "CVE-2026-112816",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://discourse.ubuntu.com/t/lxd-4-0-15-lts-has-been-released/90571",
      "source": "[email protected]"
    },
    {
      "url": "https://discourse.ubuntu.com/t/lxd-5-0-11-lts-has-been-released/90570/1",
      "source": "[email protected]"
    },
    {
      "url": "https://discourse.ubuntu.com/t/lxd-5-21-9-lts-has-been-released/90565/1",
      "source": "[email protected]"
    },
    {
      "url": "https://discourse.ubuntu.com/t/lxd-6-10-1-lts-has-been-released/90024",
      "source": "[email protected]"
    },
    {
      "url": "https://discourse.ubuntu.com/t/security-advisory-critical-vulnerability-found-in-canonical-lxd-and-microcloud/90557",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/canonical/lxd/security/advisories/GHSA-99jp-jwmc-65p4",
      "source": "[email protected]"
    }
  ]
}