FKIE_CVE-2026-12411

Vulnerability from fkie_nvd - Published: 2026-06-26 16:16 - Updated: 2026-06-26 19:58
Severity
8.4 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Summary
Broken Access Control in the devLXDInstancePatchHandler component of Canonical LXD allows an untrusted guest to mount, read, and overwrite another guest's custom storage volume via a crafted device PATCH request over /dev/lxd when security.devlxd.management.volumes is enabled.
References
security@ubuntu.comhttps://github.com/canonical/lxd/pull/18585
security@ubuntu.comhttps://github.com/canonical/lxd/security/advisories/GHSA-hhf9-qw4v-72xp
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/canonical/lxd/security/advisories/GHSA-hhf9-qw4v-72xp
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://github.com/canonical",
          "defaultStatus": "unaffected",
          "packageName": "lxd",
          "platforms": [
            "Linux"
          ],
          "product": "lxd",
          "programFiles": [
            "permissions.go"
          ],
          "repo": "https://github.com/canonical/lxd",
          "vendor": "Canonical",
          "versions": [
            {
              "lessThan": "6.9",
              "status": "affected",
              "version": "6.6",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@ubuntu.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Broken Access Control in the devLXDInstancePatchHandler component of Canonical LXD allows an untrusted guest to mount, read, and overwrite another guest\u0027s custom storage volume via a crafted device PATCH request over /dev/lxd when security.devlxd.management.volumes is enabled."
    }
  ],
  "id": "CVE-2026-12411",
  "lastModified": "2026-06-26T19:58:06.090",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 8.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 5.8,
        "source": "security@ubuntu.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-12411",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-26T16:02:35.514095Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-26T16:16:30.117",
  "references": [
    {
      "source": "security@ubuntu.com",
      "url": "https://github.com/canonical/lxd/pull/18585"
    },
    {
      "source": "security@ubuntu.com",
      "url": "https://github.com/canonical/lxd/security/advisories/GHSA-hhf9-qw4v-72xp"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/canonical/lxd/security/advisories/GHSA-hhf9-qw4v-72xp"
    }
  ],
  "sourceIdentifier": "security@ubuntu.com",
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        },
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "security@ubuntu.com",
      "type": "Secondary"
    }
  ]
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.