Denial of Service Vulnerability in Incus System Container Manager
CVE-2026-41685

4.3MEDIUM

Key Information:

Vendor

Lxc

Status
Incus
Vendor
CVE Published:
7 May 2026

What is CVE-2026-41685?

The Incus system container and virtual machine manager has a vulnerability that allows authenticated users to upload excessive amounts of data. This can result in the Incus server exhausting its disk space, and potentially cause a denial of service condition on the host system. However, users leveraging the storage.images_volume and storage.backups_volume features are less affected, as their uploads are directed to these dedicated volumes rather than the host filesystem. The issue has been addressed in version 7.0.0, ensuring better management of large uploads.

Affected Version(s)

incus < 7.0.0

References

https://github.com/lxc/incus/security/advisories/GHSA-98v...
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https://github.com/lxc/incus/releases/tag/v7.0.0
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CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.