MEDIUM 5.3 NVD
CVE-2026-12392
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
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.
References
- https://bugs.launchpad.net/maas/+bug/2153942
- https://github.com/canonical/maas/commit/3864ef9dca54e36e3d34d18233b87666b8ee1dc8
- https://github.com/canonical/maas/commit/65e89c05970f4514f9e6de043c2779017b43ad9d
- https://github.com/canonical/maas/commit/8489979d64b0e7f124e7cef66d02b21263918f9b
- https://github.com/canonical/maas/commit/a9486ad0cc90f4571142c1bea13f02d1361cb31e
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-10-02 via NVD.
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