CVE Catalog

CVE-2026-12392

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.27%

18th percentile - higher than 18% of all known CVEs

Summary

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.

Risk Assessment

Exposure of the RPC secret may allow an attacker unauthorized access to the MAAS infrastructure and takeover of machine management.

Recommendation

Update Canonical MAAS to version 3.4.10, 3.5.14, 3.6.5, 3.7.3, or 3.8.0 (or later), which fix this vulnerability.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS