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    CVE-2026-33542

    Incus is a system container and virtual machine manager. Prior to version 6.23.0, a lack of validation of the image fingerprint when downloading from simplestreams image servers opens the door to image cache poisoning and under very narrow circumstances exposes other tenants to running attacker controlled images rather than the expected one. Version 6.23.0 patches the issue.

    Published:Mar 26, 2026
    Last Modified:Mar 31, 2026
    EPS:Mar 26, 2026
    EPSS Score:0.00032
    CVSS Score:4.8

    Affected Products

    Vendor
    Linuxcontainers
    Product
    Incus
    Vendor
    Lxc
    Product
    Incus

    Exploits

    https://github.com/lxc/incus/security/advisories/GHSA-p8mm-23gg-jc9r

    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