CVE-2026-11788

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plugin deref disable; systemctl restart dirsrv@<instance>. Disable anonymous access (nsslapd-allow-anonymous-access=off) to raise the bar from pre-auth to authenticated exploitation. Configure memory limits as defense-in-depth: set nsslapd-maxbersize and nsslapd-conntablesize, and deploy in a cgroup with memory limits."}], "timeline": [{"lang": "en", "time": "2026-04-16T00:00:00.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-04-16T00:00:00.000Z", "value": "Made public."}], "credits": [{"lang": "en", "value": "This issue was discovered by Ian Murphy (Red Hat)."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-11-05T16:22:34.873Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-09T15:11:26.743552Z", "id": "CVE-2026-11788", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-09T15:12:38.533Z"}}]}}

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El plugin de control de desreferencia no verifica si hay fallas en la asignaci\u00f3n antes de usar una estructura BER, lo que permite a un atacante remoto no autenticado bloquear el servidor LDAP cuando el sistema est\u00e1 bajo presi\u00f3n de memoria."}], "id": "CVE-2026-11788", "lastModified": "2026-11-05T17:17:57.483", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "secalert@redhat.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-11788", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-09T15:11:26.743552Z", "version": "2.0.3"}}]}, "published": "2026-06-09T14:16:36.940", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:55421"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:55422"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:55423"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:55424"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:55425"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:55426"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:55530"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:55532"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:55756"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:55757"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:55758"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:55794"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:56047"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:56048"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:56050"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:79217"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/security/cve/CVE-2026-11788"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2485423"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Red Hat Enterprise Linux 10", "source": "cna", "vendor": "Red Hat"}, "product": "enterprise_linux", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 92.0, "confidence_source": "matching", "scores": [{"score": 92.0, "source": "matching"}]}, "original": {"product": "Red Hat Directory Server 11", "source": "cna", "vendor": "Red Hat"}, "product": "redhat_directory_server", "vendor": "redhat"}], "created": "2026-06-09T15:00:07.912611+00:00", "updated": "2026-06-09T20:20:42.505271+00:00", "vendors": ["redhat", "redhat$PRODUCT$enterprise_linux", "redhat$PRODUCT$redhat_directory_server"]}