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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-12392

RPC secret disclosure via vendor data endpoint in Canonical MAAS

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Status
Published
Published
Updated
Assigning organization
canonical

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Canonical MAAS

Default version status: unaffected

  • 3.4.0 to < 3.4.10affected
  • 3.5.0 to < 3.5.14affected
  • 3.6.0 to < 3.6.5affected
  • 3.7.0 to < 3.7.3affected
  • 0 to < 3.8.0affected

References