High
389-ds-base — security advisory
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.
- Products
- 389-ds-base
- Affected versions
- 1.3.3.12-1build1, 1.3.3.13-1, 1.3.4.5-2, 1.3.4.8-1, 1.3.4.8-3, 1.3.4.8-3ubuntu1, 1.3.4.8-4, 1.3.4.9-1, 1.3.4.9-1ubuntu0.1~esm1, 1.3.7.10-1, 1.3.7.10-1ubuntu1, 1.3.7.10-1ubuntu1+esm1, 1.3.7.5-1, 1.3.7.5-1build1, 1.3.7.5-1build2, 1.3.7.9-1, 1.4.1.6-4, 1.4.1.6-4build1, 1.4.2.4-1, 1.4.2.4-1build1, 1.4.3.2-1, 1.4.3.2-1build1, 1.4.3.6-2, 1.4.3.6-2ubuntu0.1~esm1, 1.4.4.11-2build1, 1.4.4.11-2build2, 1.4.4.17-1, 2.0.11-2, 2.0.14-1, 2.0.15-1, 2.0.15-1ubuntu2, 2.3.4+dfsg1-1, 2.4.4+dfsg1-1ubuntu1, 2.4.4+dfsg1-1ubuntu4, 2.4.4+dfsg1-3, 2.4.5+dfsg1-1, 3.1.2+dfsg1-1, 3.1.2+vendor1-2, 3.1.2+vendor1-2build1, 3.3.1-3
- Fixed versions
- Not specified
- CVEs
- CVE-2026-76560
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:18 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-76560
389-ds-base
Fixed versions: Not specified
389-ds-base
Fixed versions: Not specified
389-ds-base
Fixed versions: Not specified
389-ds-base
Fixed versions: Not specified
389-ds-base
Fixed versions: Not specified
389-ds-base
Fixed versions: Not specified
389-ds-base
Fixed versions: Not specified
Complete source record
{
"id": "e7dbccfbf069109ef7b29a2ad60f49919afd4d13f52386e7b6775c51fbf5db72",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-76560",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-76560",
"summary": "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.",
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{
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],
"severity": "high",
"structured": {
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"aliases": [
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"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
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],
"modified": "2026-10-17T13:01:06.865709345Z",
"provider": "osv",
"upstream": [
"CVE-2026-76560"
],
"references": [
"https://ubuntu.com/security/CVE-2026-76560",
"https://www.cve.org/CVERecord?id=CVE-2026-76560",
"https://bugzilla.redhat.com/show_bug.cgi?id=2519521"
]
},
"related_cves": [
{
"value": "CVE-2026-76560",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 361001,
"published_at": "2026-09-07T14:16:00+00:00"
}