CVE-2026-11786: Out-of-bounds Read in Red Hat Red Hat Directory Server 11
A flaw was found in 389 Directory Server. The LDIF parser reads past the end of a heap buffer when processing attribute types with trailing semicolons during database import, causing an out-of-bounds read detectable under memory instrumentation.
AI Analysis
Technical Summary
This vulnerability involves an out-of-bounds read in the LDIF parser component of Red Hat Directory Server 11. Specifically, when processing attribute types that include trailing semicolons during database import, the parser reads beyond the allocated heap buffer. The issue is detectable with memory instrumentation tools but does not lead to direct data corruption or unauthorized access. The CVSS 3.1 base score is 1.9, reflecting low impact with local attack vector, high attack complexity, and required privileges.
Potential Impact
The impact is limited to a low-severity out-of-bounds read that does not affect confidentiality, integrity, or availability of the system. There are no known exploits in the wild. The flaw is primarily detectable through memory instrumentation and does not result in a crash or code execution.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-11786 for current remediation guidance. No official fix or workaround is currently documented. Users should monitor the vendor advisory for updates and apply patches once available.
CVE-2026-11786: Out-of-bounds Read in Red Hat Red Hat Directory Server 11
Description
A flaw was found in 389 Directory Server. The LDIF parser reads past the end of a heap buffer when processing attribute types with trailing semicolons during database import, causing an out-of-bounds read detectable under memory instrumentation.
CVSS v3.1
Score 1.9low
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an out-of-bounds read in the LDIF parser component of Red Hat Directory Server 11. Specifically, when processing attribute types that include trailing semicolons during database import, the parser reads beyond the allocated heap buffer. The issue is detectable with memory instrumentation tools but does not lead to direct data corruption or unauthorized access. The CVSS 3.1 base score is 1.9, reflecting low impact with local attack vector, high attack complexity, and required privileges.
Potential Impact
The impact is limited to a low-severity out-of-bounds read that does not affect confidentiality, integrity, or availability of the system. There are no known exploits in the wild. The flaw is primarily detectable through memory instrumentation and does not result in a crash or code execution.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-11786 for current remediation guidance. No official fix or workaround is currently documented. Users should monitor the vendor advisory for updates and apply patches once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-06-09T12:54:20.303Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-11786","vendor":"Red Hat"}]
Threat ID: 6a28145b8dd33fbd85364a1b
Added to database: 06/09/2026, 13:25:47 UTC
Last enriched: 06/30/2026, 22:20:36 UTC
Last updated: 07/31/2026, 19:22:57 UTC
Views: 47
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