CVE-2026-103877
Apache Directory LDAP API: Unsafe loading of Java code from LDAP schema elements
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-502 |
| Vendor | apache software foundation |
| Product | apache directory ldap api |
| Published | Oct 2, 2026 |
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Affected Versions
Apache Software Foundation / Apache Directory LDAP API
2.1.0 < 2.1.9
References
Credits
Claude Security The Apache Software Foundation