CVE-2026-33542 (GCVE-0-2026-33542)

Vulnerability from cvelistv5 – Published: 2026-03-26 22:32 – Updated: 2026-03-30 11:47
VLAI
Title
Incus does not verify combined fingerprint when downloading images from simplestreams servers
Summary
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.
Severity
5.7 (Medium)
CVSS: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
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-30 11:47 UTC
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
Vendor Product Version CPE status
lxc incus Affected: < 6.23.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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