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    CVE-2026-33743

    Incus is a system container and virtual machine manager. Prior to version 6.23.0, a specially crafted storage bucket backup can be used by an user with access to Incus' storage bucket feature to crash the Incus daemon. Repeated use of this attack can be used to keep the server offline causing a denial of service of the control plane API. This does not impact any running workload, existing containers and virtual machines will keep operating. Version 6.23.0 fixes the issue.

    Published:Mar 26, 2026
    Last Modified:Mar 31, 2026
    EPS:Mar 26, 2026
    EPSS Score:0.00042
    CVSS Score:6.5

    Affected Products

    Vendor
    Linuxcontainers
    Product
    Incus
    Vendor
    Lxc
    Product
    Incus

    Exploits

    https://github.com/lxc/incus/security/advisories/GHSA-vg76-xmhg-j5x3https://github.com/lxc/incus/security/advisories/GHSA-vg76-xmhg-j5x3

    Related CVEs

    CVE-2026-41685 (CVSS 4.3) — Incus is a system container and virtual machine manager. Prior to version 7.0.0, uploads of large amount of da…
    CVE-2026-41684 (CVSS 6.5) — Incus is a system container and virtual machine manager. Prior to version 7.0.0, backup.GetInfo() trusts the i…
    CVE-2026-41648 (CVSS 5.3) — Incus is a system container and virtual machine manager. Prior to version 7.0.0, user provided image and backu…
    CVE-2026-41647 (CVSS 6.5) — Incus is a system container and virtual machine manager. Prior to version 7.0.0, a missing error handling coul…
    CVE-2026-40251 (CVSS 7.1) — Incus is a system container and virtual machine manager. In versions before 7.0.0, missing validation logic in…
    CVE-2026-40243 (CVSS 2.3) — Incus is a system container and virtual machine manager. In versions before 7.0.0, broken TLS validation logic…
    CVE-2026-40197 (CVSS 7.1) — Incus is a system container and virtual machine manager. In versions before 7.0.0, missing validation logic in…
    CVE-2026-40195 (CVSS 7.1) — Incus is a system container and virtual machine manager. In versions before 7.0.0, missing validation logic in…
    CVE-2026-35527 (CVSS 5.3) — Incus is an open source container and virtual machine manager. In versions prior to 7.0.0, the image import fl…
    CVE-2026-33945 (CVSS 9.9) — Incus is a system container and virtual machine manager. Incus instances have an option to provide credentials…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High