Memory Management Vulnerability in Incus by LXD
CVE-2026-41648

5.3MEDIUM

Key Information:

Vendor

Lxc

Status
Incus
Vendor
CVE Published:
7 May 2026

What is CVE-2026-41648?

Incus, a system container and virtual machine manager, has a vulnerability that allows authenticated users to supply specially crafted image or backup tarballs without size restrictions. This flaw enables the creation of excessively large YAML documents during parsing, potentially exhausting the server's memory. The issue has been resolved in version 7.0.0, ensuring improved memory handling and security.

Affected Version(s)

incus < 7.0.0

References

https://github.com/lxc/incus/security/advisories/GHSA-67w...
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https://github.com/lxc/incus/releases/tag/v7.0.0
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CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.