CVE-2026-33542

unknown

Published 2026-03-27 · Modified 2026-04-07

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

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.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OS	Version	Status	Fixed in
debian	forky	fixed	`6.0.6-2`
debian	sid	fixed	`6.0.6-2`
debian	trixie	fixed	`6.0.4-2+deb13u5`
sles		affected
debian	bookworm	fixed	`5.0.2-5+deb12u4`

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/lxc/incus/v6/client	`<6.23.0`	`6.23.0`
Go	github.com/lxc/incus
Go	github.com/lxc/incus/v6	`<6.23.0`	`6.23.0`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.