CVE-2026-13097

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The uniqueness constraint enforced on Kerberos principal name attributes in the 389-ds directory server does not properly account for equivalent representations of the same principal name, allowing a user with sufficient LDAP write privileges to create a service principal that impersonates an existing privileged one. 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The uniqueness constraint enforced on Kerberos principal name attributes in the 389-ds directory server does not properly account for equivalent representations of the same principal name, allowing a user with sufficient LDAP write privileges to create a service principal that impersonates an existing privileged one. This can lead to unauthorized acquisition of Kerberos service tickets for sensitive services, potentially resulting in full domain compromise."}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad de escalada de privilegios en FreeIPA. La restricci\u00f3n de unicidad aplicada a los atributos de nombre de principal de Kerberos en el servidor de directorio 389-ds no tiene en cuenta adecuadamente las representaciones equivalentes del mismo nombre de principal, permitiendo a un usuario con suficientes privilegios de escritura LDAP crear un principal de servicio que suplanta a uno privilegiado existente. Esto puede llevar a la adquisici\u00f3n no autorizada de tickets de servicio de Kerberos para servicios sensibles, lo que podr\u00eda resultar en un compromiso total del dominio."}], "id": "CVE-2026-13097", "lastModified": "2026-11-04T22:17:58.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 5.8, "source": "secalert@redhat.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-13097", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-21T18:11:59.402027Z", "version": "2.0.3"}}]}, "published": "2026-08-20T11:16:20.293", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:70564"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:72279"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:82935"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:83083"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:83084"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:83085"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:83460"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:83461"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:89836"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:93071"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:93452"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/security/cve/CVE-2026-13097"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515974"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-706"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"acknowledgement": "Red Hat would like to thank Vladislav Plyatsok (rd01f) for reporting this issue.", "bugzilla": {"description": "ipa: Privilege escalation via krbCanonicalName manipulation due to realm-unaware uniqueness enforcement in FreeIPA LDAP datastore", "id": "2515974", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515974"}, "csaw": false, "cvss3": {"cvss3_base_score": "9.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-706", "details": ["A privilege escalation flaw was found in FreeIPA. The uniqueness constraint enforced on Kerberos principal name attributes in the 389-ds directory server does not properly account for equivalent representations of the same principal name, allowing a user with sufficient LDAP write privileges to create a service principal that impersonates an existing privileged one. This can lead to unauthorized acquisition of Kerberos service tickets for sensitive services, potentially resulting in full domain compromise."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-13097", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "ipa", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "ipa", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "ipa", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "ipa", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "ipa", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-20T10:19:07Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-13097\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-13097"], "threat_severity": "Important"}

{"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"}], "created": "2026-08-20T22:45:02.963169+00:00", "updated": "2026-08-28T19:30:16.887968+00:00", "vendors": ["redhat", "redhat$PRODUCT$enterprise_linux"]}