CVE-2026-103880 (GCVE-0-2026-103880)

Vulnerability from cvelistv5 – Published: 2026-10-02 10:03 – Updated: 2026-10-05 18:47
VLAI
Title
Apache Directory LDAP API: Denial of service via excessive bcrypt cost factor in stored passwords
Summary
Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. Storing a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to  run for hours checking the credentials. A bounded cost should be enforced to avoid a server DOS. 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
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 18:46 UTC
CWE
  • CWE-405 - Asymmetric Resource Consumption (Amplification)
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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