CVE-2026-62420
criticalpriority · track · 0OT risk · elevatedEPSS 0.005 · 45 %ileEUUSEPSS · scored 2026-10-28
An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project security restrictions during cross-project instance migrations. When moving an instance cross-project to a different cluster member via POST /1.0/instances/{name} with migration: true, project: <target>, and target: <member>, the destination node skips all project restriction checks because the request arrives as an internal cluster notification. An attacker can exploit this to introduce disallowed instance configurations into a restricted project.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (6)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
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references (9)
External citations — patches, advisories, analysis.
- https://github.com/canonical/lxd/pull/18605cnnvd
- https://github.com/canonical/lxd/pull/18651cnnvd
- https://github.com/canonical/lxd/security/advisories/GHSA-v9wr-9r7q-fh4gcnnvd
- https://github.com/canonical/lxd/pull/18605enisa_euvd
- https://github.com/canonical/lxd/pull/18651enisa_euvd
- https://github.com/canonical/lxd/security/advisories/GHSA-v9wr-9r7q-fh4genisa_euvd
- https://github.com/canonical/lxd/pull/18605Patchnvd
- https://github.com/canonical/lxd/pull/18651Patchnvd
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