CVE-2026-103877

Last refreshed2026-10-03

Status: UPDATED | Advisory ID: CVE-2026-103877

Key Details

CVE	CVE-2026-103877
Affected products	Apache Software Foundation Apache Directory LDAP API
Classified as	CWE-502 (Deserialization of Untrusted Data)

Affected Products, Subsystems & Sectors

Vendor	Product	Affected Versions	Patch Status
Apache Software Foundation	Apache Directory LDAP API

Vendor

Product

Affected Versions

Patch Status

Apache Software Foundation

Apache Directory LDAP API

Subsystems	General OT
Sectors	Multiple

What to Know

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. (NVD)

What to Do

Monitor Apache Software Foundation's web page for any future patch releases.

References

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-103877
CVE	https://www.cve.org/CVERecord?id=CVE-2026-103877

Source

Reference

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-103877

CVE