CVE-2026-9064

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"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:26639", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:27125", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-9064", "tags": ["Mitigation", "Vendor Advisory"], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2480093", "tags": ["Issue Tracking", "Vendor Advisory"], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9064.json", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-770"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in 389-ds-base. The get_ldapmessage_controls_ext() function in the LDAP server does not enforce an upper bound on the number of controls per LDAP message. A remote, unauthenticated attacker can send a specially crafted LDAP request containing hundreds of thousands of minimal controls within the default maximum BER message size (2 MB), causing excessive CPU consumption and heap allocation on the server. Under concurrent exploitation, this leads to significant latency degradation, worker thread starvation, or out-of-memory termination, resulting in a denial of service."}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad en 389-ds-base. La funci\u00f3n get_ldapmessage_controls_ext() en el servidor LDAP no impone un l\u00edmite superior en el n\u00famero de controles por mensaje LDAP. Un atacante remoto no autenticado puede enviar una solicitud LDAP especialmente dise\u00f1ada que contiene cientos de miles de controles m\u00ednimos dentro del tama\u00f1o m\u00e1ximo predeterminado del mensaje BER (2 MB), causando un consumo excesivo de CPU y asignaci\u00f3n de memoria heap en el servidor. Bajo explotaci\u00f3n concurrente, esto lleva a una degradaci\u00f3n significativa de la latencia, agotamiento de los hilos de trabajo o terminaci\u00f3n por falta de memoria, lo que resulta en una denegaci\u00f3n de servicio."}], "lastModified": "2026-07-23T20:10:00.130", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:redhat:directory_server:11.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2A169F6D-88A5-4631-9D30-519350ACFE6E"}, {"criteria": "cpe:2.3:a:redhat:directory_server:12.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A3DAF61A-58A9-41A6-A4DC-64148055B0C1"}, {"criteria": "cpe:2.3:a:redhat:directory_server:13.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "904002F4-762C-4CFF-88C4-8FC929774DF8"}, {"criteria": "cpe:2.3:o:redhat:389_directory_server:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A861110D-0BBC-4052-BBFD-F718F6CD72C5"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2F6AB192-9D7D-4A9A-8995-E53A9DE9EAFC"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D65C2163-CFC2-4ABB-8F4E-CB09CEBD006C"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}