CVE-2026-76560: Red Hat Directory Server 11.5 E4S for RHEL 8 · Incorrect Authorization
Affects Red Hat Directory Server 11.5 E4S for RHEL 8Source CVE Database V5
Not known to be exploited · CVSS 7.5 High.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 46% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers can reliably automate steps 1–4 of the kill chain
- Technical impact
- Limited control over the software or limited information exposure
CISA SSVC assessment, 2026-09-08.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 7 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Directory Server 11.5 E4S for RHEL 8redhat-ds:11 | Affected– | Fixed in– |
| Red Hat Directory Server 11.7 E4S for RHEL 8redhat-ds:11 | Affected– | Fixed in– |
| Red Hat Directory Server 11.9 for RHEL 8redhat-ds:11 | Affected– | Fixed in– |
| Red Hat Directory Server 12.2 E4S for RHEL 9redhat-ds:12 | Affected– | Fixed in– |
| Red Hat Directory Server 12.4 E4S for RHEL 9redhat-ds:12 | Affected– | Fixed in– |
| Red Hat Enterprise Linux 10389-ds-base | Affected– | Fixed in– |
AI-suggested
A security update addressing this vulnerability is available from Red Hat as part of the 389-ds-base package update. Users should apply the official Red Hat patch as detailed in Red Hat Advisory RHSA-2026:64771. No alternative mitigations or workarounds are specified in the advisory. Systems should be updated promptly to remediate this issue.
Description
CVE-2026-76560 is a vulnerability in 389 Directory Server where the SELFDN ACI bind-rule evaluator incorrectly treats an anonymous LDAP client's empty bind DN as matching an empty stored attribute value. This flaw allows an unauthenticated client to bypass access controls intended to restrict certain operations to specific authenticated users, potentially enabling unauthorized modifications to directory entries.
References
- access.redhat.com/errata/RHSA-2026:64771 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64776 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64778 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64779 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64780 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64781 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64783 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64784 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64785 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64789 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64790 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64791 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64792 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64793 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64804 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:65119 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:79217 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-76560 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2519521 (opens in a new tab)