{"id":"CVE-2026-12392","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-12392","generatedAt":"2026-10-28T05:28:10.428Z","title":"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.","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.","published":"2026-10-02T20:17:02.000Z","lastModified":"2026-10-06T16:00:37.000Z","status":"Awaiting Analysis","sourceIdentifier":"security@ubuntu.com","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-200"],"affected":[],"epss":{"score":0.00273,"percentile":0.19596,"date":"2026-10-27","history":[{"date":"2026-10-03","score":0.00273,"percentile":0.17922}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.27%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-02T20:17:02.000Z","detail":{"score":"5.3","severity":"MEDIUM","publishedAt":"2026-10-02T20:17:01.817Z"},"summary":"New CVE, medium severity (CVSS 5.3)."}],"references":[{"url":"https://bugs.launchpad.net/maas/+bug/2153942","source":"security@ubuntu.com"},{"url":"https://github.com/canonical/maas/commit/3864ef9dca54e36e3d34d18233b87666b8ee1dc8","source":"security@ubuntu.com"},{"url":"https://github.com/canonical/maas/commit/65e89c05970f4514f9e6de043c2779017b43ad9d","source":"security@ubuntu.com"},{"url":"https://github.com/canonical/maas/commit/8489979d64b0e7f124e7cef66d02b21263918f9b","source":"security@ubuntu.com"},{"url":"https://github.com/canonical/maas/commit/a9486ad0cc90f4571142c1bea13f02d1361cb31e","source":"security@ubuntu.com"},{"url":"https://github.com/canonical/maas/commit/ead659f70224538517c80478c3fd8c9e730aae79","source":"security@ubuntu.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-12392","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}