CVE-2026-103880
Apache Directory LDAP API: Denial of service via excessive bcrypt cost factor in stored passwords
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-405 |
| Vendor | apache software foundation |
| Product | apache directory ldap api |
| Published | Oct 2, 2026 |
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Affected Versions
Apache Software Foundation / Apache Directory LDAP API
2.1.0 < 2.1.9
References
Credits
Claude Security The Apache Software Foundation