CVE-2026-12411

highCVSS 8.4covered by 1 sourcefirst seen 2026-06-26

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.

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Exploitation outlook

Low exploitation risk0.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all EPSS-scored CVEs.

Advisory coverage (1)

highCVE-2026-12411: Broken Access Control in the devLXDInstancePatchHandler component of Canonical LXD allows an u…nvd · 2026-06-26

External references

NVD record for CVE-2026-12411

CVE.org record

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