CVE-2026-12392: RPC secret disclosure via vendor data endpoint in Canonical MAAS
Canonical · MAAS
Vendor fix available · Affected: Canonical MAAS · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 19% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Canonical · MAASfrom 3.4.0 before 3.4.10; from 3.5.0 before 3.5.14; from 3.6.0 before 3.6.5; from 3.7.0 before 3.7.3; before 3.8.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Canonical
- Published
- October 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-12392 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.