{"cve":"CVE-2026-12392","nvd":{"published":"2026-10-02T20:17:01.817","modified":"2026-10-06T16:00:36.547","status":"Awaiting Analysis","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-200"],"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"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:57:46.668721662+00:00"},"epss":{"cve":"CVE-2026-12392","score":0.00273,"percentile":0.1952,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}