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4356 articles · 196341 vulns · 36/41 feeds (7d)
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9.9
CVE-2026-62941
canonical · incus

Incus: Cross-project instance copy bypasses target project restrictions via TOCTOU in config merge

Description

Incus is a system container and virtual machine manager. Prior to version 7.3.0, when copying an instance across projects, the project restriction check (`AllowInstanceCreation`) runs BEFORE the source instance's configuration is merged into the request. Dangerous configuration keys (including `security.privileged`, `raw.lxc`, `raw.apparmor`) from the source instance are merged AFTER the check passes, bypassing all project restrictions on the target project. Version 7.3.0 patches the issue.

Affected Products

VendorProductVersions
canonicalincus< 7.3.0

References

  • https://github.com/lxc/incus/security/advisories/GHSA-mq9x-prm8-3vpw(x_refsource_CONFIRM)

Related News (1 articles)

Tier C
VulDB2d ago
CVE-2026-62941 | lxc Incus up to 7.2.x privileges management
→ No new info (linked only)
CVSS 3.19.9 CRITICAL
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
CWECWE-863
PublishedAug 21, 2026
Trending Score30
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)

CRITICALCVE-2026-63125
Incus vulnerable to root RCE via image backup.yaml symlink
Trending: 30
HIGHCVE-2026-55622
Incus has a project restriction bypass in instance copy across projects
Trending: 24
CRITICALCVE-2026-62867
Incus has an argument injection in storage volume block.create_options that leads to arbitrary command execution
Trending: 24
CRITICALCVE-2026-62940
Incus has a project restriction bypass via instance migration config override
Trending: 24
CRITICALCVE-2026-63343
Arbitrary File Read/Write: metadata.yaml symlink in image allows host filesystem access as root
Trending: 24

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Aug 21, 2026
Discovered by ZDM
Aug 21, 2026