CVE-2026-103552

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.

Score

CVSS 3.1 7.3 High

Status

Deferred - security@apache.org

Published

2026-10-02

Last modified

2026-10-02

Weaknesses

CWE-121

Affected products

• Apache Directory Ldap Api (Apache Software Foundation)

References

• https://lists.apache.org/thread.html/fn3bwknn57266hx66w9vv6b4k8rfwcx7
• http://www.openwall.com/lists/oss-security/2026/10/02/4