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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageName": "maas", "platforms": ["Linux"], "product": "MAAS", "repo": "https://github.com/canonical/maas", "vendor": "Canonical", "versions": [{"lessThan": "3.4.10", "status": "affected", "version": "3.4.0", "versionType": "semver"}, {"lessThan": "3.5.14", "status": "affected", "version": "3.5.0", "versionType": "semver"}, {"lessThan": "3.6.5", "status": "affected", "version": "3.6.0", "versionType": "semver"}, {"lessThan": "3.7.3", "status": "affected", "version": "3.7.0", "versionType": "semver"}, {"lessThan": "3.8.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@ubuntu.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-12392", "lastModified": "2026-10-02T20:17:01.817", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "security@ubuntu.com", "type": "Secondary"}]}, "published": "2026-10-02T20:17:01.817", "references": [{"source": "security@ubuntu.com", "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"}], "sourceIdentifier": "security@ubuntu.com", "vulnStatus": "Received"}

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{"affected": [{"configurations": [{"platform": ["linux"], "status": "affected", "versions": {"scheme": "semver", "value": "[3.4.0,3.4.10)"}}, {"platform": ["linux"], "status": "affected", "versions": {"scheme": "semver", "value": "[3.5.0,3.5.14)"}}, {"platform": ["linux"], "status": "affected", "versions": {"scheme": "semver", "value": "[3.6.0,3.6.5)"}}, {"platform": ["linux"], "status": "affected", "versions": {"scheme": "semver", "value": "[3.7.0,3.7.3)"}}, {"platform": ["linux"], "status": "affected", "versions": {"scheme": "generic", "value": "[0,3.8.0)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "MAAS", "source": "cna", "vendor": "Canonical"}, "product": "maas", "vendor": "canonical"}], "created": "2026-10-02T20:30:16.221871+00:00", "updated": "2026-10-02T20:30:16.744133+00:00", "vendors": ["canonical", "canonical$PRODUCT$maas"], "weaknesses": ["CWE-200"]}