CVE-2026-33542

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Source
https://cve.org/CVERecord?id=CVE-2026-33542
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33542.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-33542
Aliases
Downstream
Related
Published
2026-03-26T22:32:13.733Z
Modified
2026-04-10T05:42:52.981953Z
Severity
  • 5.7 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
Incus does not verify combined fingerprint when downloading images from simplestreams servers
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33542.json",
    "cwe_ids": [
        "CWE-295"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/lxc/incus

Affected ranges

Type
GIT
Repo
https://github.com/lxc/incus
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5910ff48a6f5e1fa15ee3363b4f26076d6e35dda
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "6.23.0"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.2.0
v0.3.0
v0.4.0
v0.5.0
v0.5.1
v0.6.0
v0.7.0
v6.*
v6.0.0
v6.1.0
v6.10.0
v6.10.1
v6.11.0
v6.12.0
v6.13.0
v6.14.0
v6.15.0
v6.16.0
v6.17.0
v6.18.0
v6.19.0
v6.19.1
v6.2.0
v6.20.0
v6.21.0
v6.22.0
v6.3.0
v6.4.0
v6.5.0
v6.6.0
v6.7.0
v6.8.0
v6.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33542.json"