CVE-2026-76560

HIGH
MEDIUM Priority: 0.04 BB Relevance: 75/100
Published: 2026-09-07 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: High
A: None

Description

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.

Weakness Classification (1)

References & Advisories (19)

https://access.redhat.com/errata/RHSA-2026:64771
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64776
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64778
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64779
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64780
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64781
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64783
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64784
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64785
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64789
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64790
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64791
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64792
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64793
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64804
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:65119
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:79217
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2519521
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS — Exploitation Probability

0.56%
Raw Score 0.005560
Percentile 47.0%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00556
2026-11-13
0.00556
2026-11-12
0.00556
2026-11-10
0.00556
2026-11-09
0.00556
2026-11-08
0.00556
2026-11-07
0.00556
2026-11-06
0.00556
2026-11-05
0.00556
2026-11-04
0.00556

Intelligence Sources

mitre ref →
nvd ref →