CVE-2026-33542
published 2026-03-26CVE-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…
medium5.7CVSS 4.0
AVNACHATPPRLUINVCLVIHVANSCLSIHSANEPCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
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.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | lxd | >= 0 < 5.0.2-5+deb12u4 | 5.0.2-5+deb12u4 |
| canonical | lxd | >= 0 < 5.0.2+git20231211.1364ae4-9+deb13u4 | 5.0.2+git20231211.1364ae4-9+deb13u4 |
| debian | incus | < incus 6.0.6-2 (forky) | incus 6.0.6-2 (forky) |
| debian | lxd | < incus 6.0.6-2 (forky) | incus 6.0.6-2 (forky) |
| github.com | lxc_incus_v6 | >= 0 < 6.23.0 | 6.23.0 |
| github.com | lxc_incus_v6_client | >= 0 < 6.23.0 | 6.23.0 |
| linuxcontainers | incus | < 6.23.0 | 6.23.0 |
| lxc | incus | < 6.23.0 | 6.23.0 |
| lxc | incus | >= 0 < 6.0.4-2+deb13u5 | 6.0.4-2+deb13u5 |
| lxc | incus | >= 0 < 6.0.6-2 | 6.0.6-2 |
CVSS provenance
nvdv4.05.7MEDIUMCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
osv5.7MEDIUM