CVE-2026-41648

Incus is a system container and virtual machine manager. Prior to version 7.0.0, user provided image and backup tarballs would be unpacked and YAML files parsed without any size restrictions. This was making it easy for an authenticated user to provide a crafted image or backup tarball that when parsed by Incus would lead to a very large YAML document being loaded into memory, potentially causing the entire server to run out of memory. This issue has been patched in version 7.0.0.

CVSS v3 5.0 MEDIUM

5.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://github.com/lxc/incus/releases/tag/v7.0.0	Patch Product
https://github.com/lxc/incus/security/advisories/GHSA-67wx-r9xr-x75x	Exploit Mitigation Vendor Advisory
https://github.com/lxc/incus/security/advisories/GHSA-67wx-r9xr-x75x	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:linuxcontainers:incus:*:*:*:*:*:*:*:*

History

26 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) Incus es un gestor de contenedores de sistema y máquinas virtuales. Antes de la versión 7.0.0, los tarballs de imagen y copia de seguridad proporcionados por el usuario se desempaquetaban y los archivos YAML se analizaban sin restricciones de tamaño. Esto facilitaba a un usuario autenticado proporcionar un tarball de imagen o copia de seguridad manipulado que, al ser analizado por Incus, provocaría la carga de un documento YAML muy grande en la memoria, lo que podría causar que todo el servidor se quedara sin memoria. Este problema ha sido parcheado en la versión 7.0.0.

Information

Published : 2026-05-07 14:16

Updated : 2026-10-26 22:10

NVD link : CVE-2026-41648

Mitre link : CVE-2026-41648

CVE.ORG link : CVE-2026-41648

JSON object : View

Products Affected

linuxcontainers

incus

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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