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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-103877

Apache Directory LDAP API: Unsafe loading of Java code from LDAP schema elements

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache Directory LDAP API

Default version status: unaffected

  • 2.1.0 to < 2.1.9affected
pkg:maven/org.apache.directory.api/api-ldap-schema-data

References