CVE-2026-12392

Source
https://cve.org/CVERecord?id=CVE-2026-12392
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-12392.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-12392
Published
2026-10-02T19:24:09Z
Modified
2026-10-04T02:46:53Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
RPC secret disclosure via vendor data endpoint in Canonical MAAS
Details

An information exposure vulnerability in Canonical MAAS prior to versions 3.4.10, 3.5.14, 3.6.5, 3.7.3, and 3.8.0 allows an unauthenticated attacker to retrieve the RPC secret in plaintext via the vendor data metadata endpoint. If a target machine was deployed with the 'register as rack' option enabled, an attacker who obtains or infers the machine's system ID can query the preseed/metadata server to leak the secret.

Database specific
{
    "cna_assigner":  "canonical",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/12xxx/CVE-2026-12392.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "fixed":  "3.8.0"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/canonical/maas

Affected ranges

Type
GIT
Repo
https://github.com/canonical/maas
Events
Database specific
Show details
{
    "extracted_events":  [
        {
            "introduced":  "3.4.0"
        },
        {
            "fixed":  "3.4.10"
        },
        {
            "introduced":  "3.5.0"
        },
        {
            "fixed":  "3.5.14"
        },
        {
            "introduced":  "3.6.0"
        },
        {
            "fixed":  "3.6.5"
        },
        {
            "introduced":  "3.7.0"
        },
        {
            "fixed":  "3.7.3"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

3.*
3.5.0
3.5.1
3.5.10
3.5.11
3.5.12
3.5.13
3.5.2
3.5.3
3.5.4
3.5.5
3.5.6
3.5.7
3.5.8
3.5.9
3.7.0
3.7.1
3.7.2

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-12392.json"