CVE catalog

CVE-2026-33743

Incus is a system container and virtual machine…

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.

Severity: Medium · CVSS 6.5
Published: Mar 26, 2026, 10:40:07 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.39% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence

Original provider fields

{
  "package_releases": [
    {
      "name": "lxd",
      "status": "not affected",
      "release": "trixie",
      "version": "5.0.2+git20231211.1364ae4-9+deb13u7"
    },
    {
      "name": "lxd",
      "status": "not affected",
      "release": "trixie-security",
      "version": "5.0.2+git20231211.1364ae4-9+deb13u7"
    },
    {
      "name": "lxd",
      "status": "not affected",
      "release": "bookworm",
      "version": "5.0.2-5+deb12u6"
    },
    {
      "name": "lxd",
      "status": "not affected",
      "release": "bookworm-security",
      "version": "5.0.2-5+deb12u6"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "lxd",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "unimportant",
      "fixed_version": "0"
    },
    {
      "bug": null,
      "name": "lxd",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": "0"
    }
  ],
  "distribution_packages": [
    {
      "name": "incus",
      "ecosystem": "cpe",
      "fixed_version": "6.23.0"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[lxd]Unknown
Details (4)
- 5.0.2-5+deb12u6 · amd64 · bookworm
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · arm64 · bookworm
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · amd64 · bookworm-security
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · arm64 · bookworm-security
  Not affected
  nvd · lxd · debian · bookworm
[lxd-agent]Unknown
Source package: [lxd]
Details (4)
- 5.0.2-5+deb12u6 · amd64 · bookworm
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · arm64 · bookworm
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · amd64 · bookworm-security
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · arm64 · bookworm-security
  Not affected
  nvd · lxd · debian · bookworm
[lxd-client]Unknown
Source package: [lxd]
Details (4)
- 5.0.2-5+deb12u6 · amd64 · bookworm
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · arm64 · bookworm
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · amd64 · bookworm-security
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · arm64 · bookworm-security
  Not affected
  nvd · lxd · debian · bookworm
[lxd-migrate]Unknown
Source package: [lxd]
Details (4)
- 5.0.2-5+deb12u6 · amd64 · bookworm
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · arm64 · bookworm
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · amd64 · bookworm-security
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · arm64 · bookworm-security
  Not affected
  nvd · lxd · debian · bookworm
[lxd-tools]Unknown
Source package: [lxd]
Details (4)
- 5.0.2-5+deb12u6 · amd64 · bookworm
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · arm64 · bookworm
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · amd64 · bookworm-security
  Not affected
  nvd · lxd · debian · bookworm
- 5.0.2-5+deb12u6 · arm64 · bookworm-security
  Not affected
  nvd · lxd · debian · bookworm

[Debian 13 (Trixie)]

[golang-github-lxc-incus-dev]Unknown
Source package: [incus]
Details (7)
- 6.0.4-2+deb13u8 · all · trixie
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u8 · all · trixie
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · all · trixie-backports
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · all · trixie-backports
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u11 · all · trixie-security
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · all · trixie-security · Historical version
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · all · trixie-security
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
[incus]Unknown
Details (7)
- 6.0.4-2+deb13u8 · amd64 · trixie
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u8 · arm64 · trixie
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u11 · amd64 · trixie-security
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · amd64 · trixie-security · Historical version
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · arm64 · trixie-security
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
[incus-agent]Unknown
Source package: [incus]
Details (7)
- 6.0.4-2+deb13u8 · amd64 · trixie
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u8 · arm64 · trixie
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u11 · amd64 · trixie-security
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · amd64 · trixie-security · Historical version
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · arm64 · trixie-security
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
[incus-base]Unknown
Source package: [incus]
Details (7)
- 6.0.4-2+deb13u8 · amd64 · trixie
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u8 · arm64 · trixie
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u11 · amd64 · trixie-security
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · amd64 · trixie-security · Historical version
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · arm64 · trixie-security
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
[incus-client]Unknown
Source package: [incus]
Details (7)
- 6.0.4-2+deb13u8 · amd64 · trixie
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u8 · arm64 · trixie
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u11 · amd64 · trixie-security
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · amd64 · trixie-security · Historical version
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · arm64 · trixie-security
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
[incus-extra]Unknown
Source package: [incus]
Details (7)
- 6.0.4-2+deb13u8 · amd64 · trixie
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u8 · arm64 · trixie
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u11 · amd64 · trixie-security
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · amd64 · trixie-security · Historical version
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · arm64 · trixie-security
  Fixed · Fixed: 6.0.4-2+deb13u5
  nvd · incus · debian · 13

Observed: Oct 27, 2026, 8:01:34 AM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]