CVE-2026-103552: CWE-121 Stack-based buffer overflow in Apache Software Foundation Apache Directory LDAP API
Stack Overflow vulnerability in Apache Directory LDAP API. Before binding, a client can send a deeply nested search filter that overflows the stack in the server's decoder. This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9. Users are recommended to upgrade to version 1.2.9, which fixes the issue.
AI Analysis
Technical Summary
CVE-2026-103552 is a stack-based buffer overflow vulnerability (CWE-121) in the Apache Directory LDAP API. The flaw occurs when a client sends a deeply nested search filter prior to binding, causing the server's decoder to overflow the stack. This vulnerability affects Apache Directory LDAP API versions from 1.2.0 up to 1.2.9. The issue is fixed in version 1.2.9.
Potential Impact
The vulnerability could allow an attacker to cause a stack overflow in the server's decoder by sending a specially crafted deeply nested search filter. This could potentially lead to denial of service or other unintended behavior. No known exploits in the wild have been reported.
Mitigation Recommendations
Users should upgrade to Apache Directory LDAP API version 1.2.9 or later, which contains the fix for this vulnerability.
CVE-2026-103552: CWE-121 Stack-based buffer overflow in Apache Software Foundation Apache Directory LDAP API
Description
Stack Overflow vulnerability in Apache Directory LDAP API. Before binding, a client can send a deeply nested search filter that overflows the stack in the server's decoder. This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9. Users are recommended to upgrade to version 1.2.9, which fixes the issue.
CVSS v3.1
Score 7.3high
Affected software
Apache Software Foundation
Apache Directory LDAP API
pkg:maven/Apache Software Foundation/org.apache.directory.api:api-ldap-codec-coreRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-103552 is a stack-based buffer overflow vulnerability (CWE-121) in the Apache Directory LDAP API. The flaw occurs when a client sends a deeply nested search filter prior to binding, causing the server's decoder to overflow the stack. This vulnerability affects Apache Directory LDAP API versions from 1.2.0 up to 1.2.9. The issue is fixed in version 1.2.9.
Potential Impact
The vulnerability could allow an attacker to cause a stack overflow in the server's decoder by sending a specially crafted deeply nested search filter. This could potentially lead to denial of service or other unintended behavior. No known exploits in the wild have been reported.
Mitigation Recommendations
Users should upgrade to Apache Directory LDAP API version 1.2.9 or later, which contains the fix for this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-09-30T20:36:55.045Z
- State
- PUBLISHED
Threat ID: 6abf810ea43b0b3b899fddea
Added to database: 10/02/2026, 10:01:50 UTC
Last enriched: 10/02/2026, 10:16:19 UTC
Last updated: 10/02/2026, 20:45:56 UTC
Views: 14
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