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CVE-2026-12411

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a043959f6792f7f5b8f619e83c1d6914650ecfc04b164ea30f580a3ac83a58fd
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-639","description":"CWE-639 Authorization bypass through User-Controlled key","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7e7e178dd79aaf175623b5537e4e3376359909f55cc5eb599245dab5bb67672d · sha256:4227ca97ce78288d… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-862","description":"CWE-862 Missing Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7e7e178dd79aaf175623b5537e4e3376359909f55cc5eb599245dab5bb67672d · sha256:4227ca97ce78288d… · /containers/cna/problemTypes/0/descriptions/1

Affected products and versions

1 source assertion
{"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"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7e7e178dd79aaf175623b5537e4e3376359909f55cc5eb599245dab5bb67672d · sha256:4227ca97ce78288d… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"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"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7e7e178dd79aaf175623b5537e4e3376359909f55cc5eb599245dab5bb67672d · sha256:4227ca97ce78288d… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-639","description":"CWE-639 Authorization bypass through User-Controlled key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7e7e178dd79aaf175623b5537e4e3376359909f55cc5eb599245dab5bb67672d · sha256:4227ca97ce78288d… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-862","description":"CWE-862 Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7e7e178dd79aaf175623b5537e4e3376359909f55cc5eb599245dab5bb67672d · sha256:4227ca97ce78288d… · /containers/cna/problemTypes/0/descriptions/1

Source references

3 source assertions
{"name":"Security fixes from the 6.9 release","tags":["patch"],"url":"https://github.com/canonical/lxd/pull/18585"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7e7e178dd79aaf175623b5537e4e3376359909f55cc5eb599245dab5bb67672d · sha256:4227ca97ce78288d… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://github.com/canonical/lxd/security/advisories/GHSA-hhf9-qw4v-72xp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7e7e178dd79aaf175623b5537e4e3376359909f55cc5eb599245dab5bb67672d · sha256:4227ca97ce78288d… · /containers/adp/0/references/0
{"name":"Cross-guest volume hijack via DevLXD device patch","tags":["vdb-entry","vendor-advisory"],"url":"https://github.com/canonical/lxd/security/advisories/GHSA-hhf9-qw4v-72xp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7e7e178dd79aaf175623b5537e4e3376359909f55cc5eb599245dab5bb67672d · sha256:4227ca97ce78288d… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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