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.
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.
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Affected Vendors & Products
Advisories
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Fixes
Solution
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Workaround
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References
History
Fri, 02 Oct 2026 10:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Apache Directory LDAP API: Denial of service via excessive bcrypt cost factor in stored passwords | |
| Weaknesses | CWE-405 | |
| References |
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Projects
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Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-10-02T10:03:48.296Z
Reserved: 2026-10-01T13:05:10.819Z
Link: CVE-2026-103880
No data.
Status : Received
Published: 2026-10-02T10:17:06.700
Modified: 2026-10-02T10:17:06.700
Link: CVE-2026-103880
No data.
OpenCVE Enrichment
No data.
Weaknesses