Vulnerability intelligence

CVE-2026-103877

Apache Software Foundation Apache Directory LDAP API CWE-502

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.

CVSS Score

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Unrated

EPSS — Exploit Probability

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Awaiting FIRST.org data · checked 2026-10-03

Exploitation

Not in CISA KEV

KEV does not include every exploited vulnerability

Remediation

unknown

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