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
The Apache Directory LDAP API contains a stack overflow vulnerability (CWE-121) triggered by processing a deeply nested search filter sent by a client before binding. This can cause the server's decoder to overflow its stack, potentially leading to denial of service or other impacts. The vulnerability affects versions from 1.2.0 before 1.2.9. Upgrading to version 1.2.9 addresses this issue.
Potential Impact
The vulnerability can cause a stack overflow in the server's decoder when handling deeply nested search filters, which may lead to a denial of service or unexpected behavior. No information about exploitation in the wild is available.
Mitigation Recommendations
Users should upgrade Apache Directory LDAP API to version 1.2.9 or later, which contains the fix for this stack overflow 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
pkg:maven/org.apache.directory.api/api-ldap-apiRun 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
The Apache Directory LDAP API contains a stack overflow vulnerability (CWE-121) triggered by processing a deeply nested search filter sent by a client before binding. This can cause the server's decoder to overflow its stack, potentially leading to denial of service or other impacts. The vulnerability affects versions from 1.2.0 before 1.2.9. Upgrading to version 1.2.9 addresses this issue.
Potential Impact
The vulnerability can cause a stack overflow in the server's decoder when handling deeply nested search filters, which may lead to a denial of service or unexpected behavior. No information about exploitation in the wild is available.
Mitigation Recommendations
Users should upgrade Apache Directory LDAP API to version 1.2.9 or later, which contains the fix for this stack overflow vulnerability.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-mggr-349m-j697
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-103552"]
- State
- PUBLISHED
Threat ID: 6abfee9ca43b0b3b89e551a8
Added to database: 10/02/2026, 17:49:16 UTC
Last enriched: 10/02/2026, 18:03:40 UTC
Last updated: 10/02/2026, 19:59:20 UTC
Views: 2
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