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.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-094b7621cf advisory.

    Remove incus dependency from incus-agent.

    ----

    Update to [6.23](https://github.com/lxc/incus/releases/tag/v6.23.0)




Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-4481307278 advisory.

    Remove incus dependency from incus-agent.

    ----

    Update to [6.23](https://github.com/lxc/incus/releases/tag/v6.23.0)



Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 12 / 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6188 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6188-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     March 31, 2026                        https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : lxd     CVE ID         : CVE-2026-28384 CVE-2026-33542 CVE-2026-33897

    Multiple security issues were discovered in LXD, a system container     and virtual machine manager, which could result in privilege escalation     or the execution of arbitrary commands.

    For the oldstable distribution (bookworm), these problems have been fixed     in version 5.0.2-5+deb12u4.

    For the stable distribution (trixie), these problems have been fixed in     version 5.0.2+git20231211.1364ae4-9+deb13u4.

    We recommend that you upgrade your lxd packages.

    For the detailed security status of lxd please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/lxd

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6184 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6184-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     March 29, 2026                        https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : incus     CVE ID         : CVE-2026-28384 CVE-2026-33542 CVE-2026-33743

    Multiple security issues were discovered in Incus, a system container     and virtual machine manager, which could result in denial of service     or the execution of arbitrary commands.

    For the stable distribution (trixie), these problems have been fixed in     version 6.0.4-2+deb13u5.

    We recommend that you upgrade your incus packages.

    For the detailed security status of incus please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/incus

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2026-33542)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-33542)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
307511	Fedora 43 : incus (2026-094b7621cf)	Nessus	Fedora Local Security Checks	Local	high
307510	Fedora 42 : incus (2026-4481307278)	Nessus	Fedora Local Security Checks	Local	high
304555	Debian dsa-6188 : golang-github-canonical-lxd-dev - security update	Nessus	Debian Local Security Checks	Local	critical
304243	Debian dsa-6184 : golang-github-lxc-incus-dev - security update	Nessus	Debian Local Security Checks	Local	critical
439356	SCA: security update for github.com/lxc/incus/v6/client (GHSA-p8mm-23gg-jc9r)	Tenable Cloud Security	SCA Checks	Local	high
439356	SCA: security update for github.com/lxc/incus/v6/client (GHSA-p8mm-23gg-jc9r)	Tenable Self-Hosted Container Security	SCA Checks	Local	high
303935	Linux Distros Unpatched Vulnerability : CVE-2026-33542	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-33542

high

Tenable Plugins

high

high

critical

critical

high

high

high