CVE Explorer

CVE-2026-34177

Canonical LXD versions 4.12 through 6.7 contain an incomplete denylist in isVMLowLevelOptionForbidden (lxd/project/limits/permissions.go), which omits raw.apparmor and raw.qemu.conf from the set of keys blocked under the restricted.virtual-machines.lowlevel=block project restriction. A remote attacker with can_edit permission on a VM instance in a restricted project can inject an AppArmor rule and a QEMU chardev configuration that bridges the LXD Unix socket into the guest VM, enabling privilege

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e127300e8dc6ab476cfb1ffb97b8c4029235337188a642a0c597c9faae4de69d

Known exploited

Not asserted

Disputed

Stale source

Conflicts

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":"5.0.7","status":"affected","version":"4.12.0","versionType":"semver"},{"lessThan":"5.21.5","status":"affected","version":"5.1.0","versionType":"semver"},{"lessThan":"6.8.0","status":"affected","version":"6.0.0","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:3916f9f102c6b8982dbc34ad035964f60e4797811370aac1134e61d8099985c7 · sha256:29d5a157dec82293… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:3916f9f102c6b8982dbc34ad035964f60e4797811370aac1134e61d8099985c7 · sha256:29d5a157dec82293… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-184","description":"CWE-184 Incomplete list of disallowed inputs","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:3916f9f102c6b8982dbc34ad035964f60e4797811370aac1134e61d8099985c7 · sha256:29d5a157dec82293… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"lxd: Prevent use of raw.apparmor and raw.qemu.conf when low level options are blocked","tags":["patch","issue-tracking"],"url":"https://github.com/canonical/lxd/pull/17909"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3916f9f102c6b8982dbc34ad035964f60e4797811370aac1134e61d8099985c7 · sha256:29d5a157dec82293… · /containers/cna/references/1

{"name":"VM lowlevel restriction bypass via raw.apparmor and raw.qemu.conf","tags":["vdb-entry","vendor-advisory"],"url":"https://github.com/canonical/lxd/security/advisories/GHSA-fm2x-c5qw-4h6f"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3916f9f102c6b8982dbc34ad035964f60e4797811370aac1134e61d8099985c7 · sha256:29d5a157dec82293… · /containers/cna/references/0

{"tags":["exploit"],"url":"https://github.com/canonical/lxd/security/advisories/GHSA-fm2x-c5qw-4h6f"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3916f9f102c6b8982dbc34ad035964f60e4797811370aac1134e61d8099985c7 · sha256:29d5a157dec82293… · /containers/adp/0/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.

← Back to CVE Explorer