Deserialization in Apache Software Foundation Directory Ldap API

CVE-2026-103877

Deserialization of Untrusted Data vulnerability in Apache Directory LDAP API. A rogue/compromised LDAP server (or pre-TLS MITM) can answer a client's loadSchema() subschema search with a schema object that contains a serialized Java class, allowing some potential RCE.  This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.

Vulnerability class: Insecure Deserialization

Published · last modified .

EPSS exploit prediction

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Affected products

Weakness classification (CWE)

References