CVE-2026-103885CWE-400denial-of-service

CVE-2026-103885

High · published October 2, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
41.0
In the wild
Unconfirmed
What it is

Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API.

A LDAP server using the LDAP API (like Apache DS) may consume 100% of a CPU core indefinitely when processing some badly crafted Telephone Numbers.

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00488 · 41.0th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2026-10-02T14:17Z
References (2)
https://lists.apache.org/thread.html/wjt9p1l123v6b3zd5dg41f8lfrgy5vg9 · [email protected]http://www.openwall.com/lists/oss-security/2026/10/02/8 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 04 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 02 OCT 10:09Z
    Apache Directory LDAP API: Denial of service via crafted telephone number values
    cvelistv5