CVE-2026-76560

A flaw was found in 389 Directory Server. The SELFDN ACI bind-rule evaluator incorrectly matches an anonymous LDAP client's empty bind DN against an empty stored attribute value, allowing an unauthenticated client to satisfy access control checks intended to require a matching authenticated identity. This can allow an anonymous LDAP client to perform an operation, such as adding or modifying a directory entry, that a SELFDN-based ACI intended to restrict to a specific authenticated user.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:64771
https://access.redhat.com/errata/RHSA-2026:64776
https://access.redhat.com/errata/RHSA-2026:64778
https://access.redhat.com/errata/RHSA-2026:64779
https://access.redhat.com/errata/RHSA-2026:64780
https://access.redhat.com/errata/RHSA-2026:64781
https://access.redhat.com/errata/RHSA-2026:64783
https://access.redhat.com/errata/RHSA-2026:64784
https://access.redhat.com/errata/RHSA-2026:64785
https://access.redhat.com/errata/RHSA-2026:64789
https://access.redhat.com/errata/RHSA-2026:64790
https://access.redhat.com/errata/RHSA-2026:64791
https://access.redhat.com/errata/RHSA-2026:64792
https://access.redhat.com/errata/RHSA-2026:64793
https://access.redhat.com/errata/RHSA-2026:64804
https://access.redhat.com/errata/RHSA-2026:65119
https://access.redhat.com/security/cve/CVE-2026-76560
https://bugzilla.redhat.com/show_bug.cgi?id=2519521

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-07 14:16

Updated : 2026-09-08 22:19

NVD link : CVE-2026-76560

Mitre link : CVE-2026-76560

CVE.ORG link : CVE-2026-76560

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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"affected"}, {"cpes": ["cpe:/a:redhat:directory_server:11"], "vendor": "Red Hat", "product": "Red Hat Directory Server 11", "packageName": "389-ds-base", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:directory_server:12"], "vendor": "Red Hat", "product": "Red Hat Directory Server 12", "packageName": "389-ds-base", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:directory_server:12"], "vendor": "Red Hat", "product": "Red Hat Directory Server 12", "packageName": "redhat-ds:12/389-ds-base", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:directory_server:13"], "vendor": "Red Hat", "product": "Red Hat Directory Server 13", "packageName": "389-ds-base", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "packageName": "389-ds-base", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unknown"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "packageName": "389-ds-base", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}]}], "published": "2026-09-07T14:16:54.197", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:64771", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:64776", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:64778", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:64779", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:64780", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:64781", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:64783", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:64784", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:64785", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:64789", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:64790", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:64791", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:64792", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:64793", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:64804", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:65119", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-76560", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519521", "source": "secalert@redhat.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in 389 Directory Server. The SELFDN ACI bind-rule evaluator incorrectly matches an anonymous LDAP client's empty bind DN against an empty stored attribute value, allowing an unauthenticated client to satisfy access control checks intended to require a matching authenticated identity. This can allow an anonymous LDAP client to perform an operation, such as adding or modifying a directory entry, that a SELFDN-based ACI intended to restrict to a specific authenticated user."}], "lastModified": "2026-09-08T22:19:15.550", "sourceIdentifier": "secalert@redhat.com"}