Improper Certificate Validation Affecting incus package, versions <6.0.4-2+deb13u5


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.18% (8th percentile)

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  • Snyk IDSNYK-ECHOLATEST-INCUS-18496042
  • published1 Aug 2026
  • disclosed26 Mar 2026

Introduced: 26 Mar 2026

CVE-2026-33542  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade Echo:latest incus to version 6.0.4-2+deb13u5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream incus package and not the incus package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1