{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-86532", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-09-07T19:42:26.633Z", "datePublished": "2026-11-10T14:53:27.146Z", "dateUpdated": "2026-11-10T14:54:34.639Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-11-10T14:54:34.639Z"}, "title": "Apache TomEE: Username enumeration and timing side channel in JAAS login modules", "problemTypes": [{"descriptions": [{"description": "CWE-203 Observable Discrepancy", "lang": "en", "cweId": "CWE-203", "type": "CWE"}]}], "source": {"discovery": "INTERNAL"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache TomEE", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.openejb:openejb-core", "packageURL": "pkg:maven/org.apache.openejb/openejb-core", "versions": [{"status": "affected", "version": "4.0.0-beta-1", "lessThanOrEqual": "4.7.5", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Apache Software Foundation", "product": "Apache TomEE", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.tomee:openejb-core", "packageURL": "pkg:maven/org.apache.tomee/openejb-core", "versions": [{"status": "affected", "version": "7.0.0-M1", "lessThan": "10.0.0-M1", "versionType": "semver"}, {"status": "affected", "version": "10.0.0-M1", "lessThan": "10.3.0", "versionType": "semver"}, {"status": "affected", "version": "11.0.0-M1", "lessThan": "11.0.0-M2", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"value": "The bundled JAAS login modules leak whether a username exists and compare credentials in a non-constant-time manner. A remote unauthenticated attacker can enumerate valid accounts and may infer credential material through timing analysis. Users are recommended to upgrade to version 10.3.0 or 11.0.0-M2, which fix the issue.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "The bundled JAAS login modules leak whether a username exists and compare credentials in a non-constant-time manner. A remote unauthenticated attacker can enumerate valid accounts and may infer credential material through timing analysis. Users are recommended to upgrade to version 10.3.0 or 11.0.0-M2, which fix the issue."}]}], "references": [{"url": "https://lists.apache.org/thread.html/oohwxbp6xx8dgl18xy1p1y6qjg59dgoh", "tags": ["vendor-advisory"]}], "metrics": [{"other": {"type": "Textual description of severity", "content": {"text": "low"}}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "credits": [{"lang": "en", "value": "The Apache Software Foundation", "type": "finder"}, {"lang": "en", "value": "Claude Security", "type": "tool"}, {"lang": "en", "value": "Markus Jung", "type": "remediation developer"}], "x_generator": {"engine": "Vulnogram 1.0.3"}}}}

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