CVE-2026-103877 (GCVE-0-2026-103877)

Vulnerability from cvelistv5 – Published: 2026-10-02 10:08 – Updated: 2026-10-07 22:07
VLAI
Title
Apache Directory LDAP API: Unsafe loading of Java code from LDAP schema elements
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 20:54 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
apache CNA under the mitre root
CNA scorecard B 76/100 over 1078 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache Directory LDAP API Affected: 2.1.0 , < 2.1.9 (semver)
guessed Create a notification for this product.
Credits
Claude Security The Apache Software Foundation
Show details on NVD website
To clipboard 

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