CVE-2026-33743
CVE-2026-33743 · Incus vulnerable to denial of source through crafted bucket backup file
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 6.5 · Medium · EPSS 0.4% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
incus
- Versions
- < 6.23.0: Affected
No fix published
incus Debian:13
- Versions
- 6.0.4-2
- 6.0.4-2+deb13u1
- 6.0.4-2+deb13u1~bpo12+1
- 6.0.4-2+deb13u2
- 6.0.4-2+deb13u2~bpo12+1
- 6.0.4-2+deb13u3
- 6.0.4-2+deb13u3~bpo12+1
- 6.0.4-2+deb13u4
- 6.0.4-2+deb13u4~bpo12+1
- 6.0.4-2+deb13u5~bpo12+1
- Affected ranges
- ECOSYSTEM: < 6.0.4-2+deb13u5
Update to 6.0.4-2+deb13u5
incus Debian:14
- Versions
- 6.0.4-2
- 6.0.4-3
- 6.0.5-1
- 6.0.5-2
- 6.0.5-3
- 6.0.5-4
- 6.0.5-5
- 6.0.5-6
- 6.0.5-7
- 6.0.5-8
- 6.0.6-1
- Affected ranges
- ECOSYSTEM: < 6.0.6-2
Update to 6.0.6-2
incus Ubuntu:Pro:24.04:LTS
- Versions
- 0.4-1ubuntu1
- 0.5.1-1
- 0.5.1-3
- 0.6-1
- 6.0.0-1
- 6.0.0-1ubuntu0.1
- 6.0.0-1ubuntu0.2
- 6.0.0-1ubuntu0.2+esm1
- 6.0.0-1ubuntu0.3
- 6.0.0-1ubuntu0.3+esm1
- 6.0.0-1ubuntu0.3+esm2
- 6.0.0-1ubuntu0.3+esm3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
incus Ubuntu:25.10
- Versions
- 6.0.3-4
- 6.0.4-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
incus Ubuntu:26.10
- Versions
- 6.0.5-8
- 7.0.1-5
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
incus Ubuntu:Pro:26.04:LTS
- Versions
- 6.0.4-2
- 6.0.5-8
- 6.0.5-8ubuntu0.26.04.1~esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published