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5073 articles · 189137 vulns · 37/41 feeds (7d)
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8.5
CVE-2026-63299PATCHED
canonical · lxd

Storage volume cross-project move and snapshot restore bypass project disk limits

Description

An authorization bypass vulnerability in LXD allows an authenticated user to bypass project-level disk and volume limits. Two related code paths fail to verify resource limits during volume operations: the storagePoolVolumeTypePostMove function omits the limits.AllowVolumeCreation check before moving a volume across projects, and volume snapshot restore operations skip the AllowVolumeUpdate check when the configuration is nil (Config == nil). An attacker can exploit these flaws to allocate storage resources that exceed the administrative limits configured for a project.

Affected Products

VendorProductVersions
canonicallxd5.0.0, 5.21.0, 6.0

References

  • https://github.com/canonical/lxd/security/advisories/GHSA-5h78-p252-989h(vdb-entry, vendor-advisory)

Related News (1 articles)

Tier C
VulDB2h ago
CVE-2026-63299 | Canonical LXD up to 5.0.7/5.21.5/6.9 Volume Operations storagePoolVolumeTypePostMove authorization
→ No new info (linked only)
CVSS 3.18.5 HIGH
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CISA KEV❌ No
Actively exploited❌ No
Patch available
5.0.85.21.66.10
CWECWE-770
PublishedAug 12, 2026
Trending Score32
Source articles1
Independent1
Info Completeness0/14
Missing: cve_id, title, description, vendor, product, versions, cvss, epss, cwe, kev, exploit, patch, iocs, mitre_attack

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Related CVEs (5)

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Cross-project cluster migration bypasses project restrictions via cluster notification flag
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CRITICALCVE-2026-63293
Arbitrary File Read/Write: metadata.yaml symlink in image allows host filesystem access as root
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CRITICALCVE-2026-63294
Root RCE via image backup.yaml symlink
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CRITICALCVE-2026-66898
Path traversal via unvalidated instance name in backup tarball restore enables root file write / RCE
Trending: 30
CRITICALCVE-2026-63297
Cross-project instance copy bypasses target project restrictions via TOCTOU in config merge
Trending: 30

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Aug 12, 2026
Discovered by ZDM
Aug 12, 2026
Patch Available
Aug 12, 2026