Bug 2544997 (CVE-2026-103877) - CVE-2026-103877 org.apache.directory.api/api-ldap-client-api: Apache Directory LDAP API: Remote code execution via untrusted Java object deserialization
Summary: CVE-2026-103877 org.apache.directory.api/api-ldap-client-api: Apache Director...
Keywords:
Status: NEW
Alias: CVE-2026-103877
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-02 10:21 UTC by OSIDB Bzimport
Modified: 2026-10-02 20:25 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-10-02 10:21:43 UTC 
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.
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