CVE-2026-103552

Summary

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.

Affected Software

Weaknesses

• CWE-121: CWE-121 Stack-based buffer overflow

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

CVE Program Container

Additional References

• http://www.openwall.com/lists/oss-security/2026/10/02/4

References

• https://lists.apache.org/thread.html/fn3bwknn57266hx66w9vv6b4k8rfwcx7

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