CVE-2026-97335: CWE-863 Incorrect Authorization in Canonical LXD
Incorrect authorization in the custom storage volume creation endpoint in Canonical LXD versions 5.0.0 and later (fixed in 5.0.10, 5.21.8 and 6.10) on Linux allows an authenticated client with permission to create custom volumes in a project to copy, and so read, any custom storage volume from any other project on the server, including its snapshots and configuration. The client does this with a crafted request that sets a source volume and source.project but omits source.type.
AI Analysis
Technical Summary
This vulnerability in Canonical LXD arises from improper authorization checks in the custom storage volume creation API endpoint. Authenticated users with create permissions in one project can exploit this flaw by sending a specially crafted request that omits the source.type field but specifies source volume and source.project. This allows them to copy and read any custom storage volume, including snapshots and configurations, from other projects on the same server. The flaw affects LXD versions from 5.0.0 up to but not including 5.0.10, 5.21.0 up to but not including 5.21.8, and 6.0 up to but not including 6.10. The vulnerability has a CVSS 3.1 score of 7.7, indicating high severity. It does not affect cloud-hosted services and no known exploits in the wild have been reported.
Potential Impact
An authenticated client with permission to create custom volumes in a project can read any custom storage volume from other projects on the same server, including snapshots and configuration data. This leads to unauthorized disclosure of potentially sensitive data. The vulnerability does not impact integrity or availability but has a high confidentiality impact.
Mitigation Recommendations
This vulnerability is fixed in Canonical LXD versions 5.0.10, 5.21.8, and 6.10. Users should upgrade to these or later versions to remediate the issue. Since this is not a cloud service, remediation requires applying the official patches provided by Canonical. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-97335: CWE-863 Incorrect Authorization in Canonical LXD
Description
Incorrect authorization in the custom storage volume creation endpoint in Canonical LXD versions 5.0.0 and later (fixed in 5.0.10, 5.21.8 and 6.10) on Linux allows an authenticated client with permission to create custom volumes in a project to copy, and so read, any custom storage volume from any other project on the server, including its snapshots and configuration. The client does this with a crafted request that sets a source volume and source.project but omits source.type.
CVSS v3.1
Score 7.7high
Affected software
Canonical
LXD
pkg:github/LXDRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Canonical LXD arises from improper authorization checks in the custom storage volume creation API endpoint. Authenticated users with create permissions in one project can exploit this flaw by sending a specially crafted request that omits the source.type field but specifies source volume and source.project. This allows them to copy and read any custom storage volume, including snapshots and configurations, from other projects on the same server. The flaw affects LXD versions from 5.0.0 up to but not including 5.0.10, 5.21.0 up to but not including 5.21.8, and 6.0 up to but not including 6.10. The vulnerability has a CVSS 3.1 score of 7.7, indicating high severity. It does not affect cloud-hosted services and no known exploits in the wild have been reported.
Potential Impact
An authenticated client with permission to create custom volumes in a project can read any custom storage volume from other projects on the same server, including snapshots and configuration data. This leads to unauthorized disclosure of potentially sensitive data. The vulnerability does not impact integrity or availability but has a high confidentiality impact.
Mitigation Recommendations
This vulnerability is fixed in Canonical LXD versions 5.0.10, 5.21.8, and 6.10. Users should upgrade to these or later versions to remediate the issue. Since this is not a cloud service, remediation requires applying the official patches provided by Canonical. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- canonical
- Date Reserved
- 2026-09-24T12:15:00.374Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aba6ca0f7a7c54106b9890d
Added to database: 09/28/2026, 13:33:20 UTC
Last enriched: 09/28/2026, 13:47:43 UTC
Last updated: 09/29/2026, 01:57:22 UTC
Views: 14
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