CVE-2026-103880

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://lists.apache.org/thread.html/39q63m54v9go6xj7pqj7q18c3szn9go4
http://www.openwall.com/lists/oss-security/2026/10/02/7

Configurations

No configuration.

History

05 Oct 2026, 19:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

02 Oct 2026, 22:16

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/10/02/7 -

02 Oct 2026, 10:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-02 10:17

Updated : 2026-10-05 19:17

NVD link : CVE-2026-103880

Mitre link : CVE-2026-103880

CVE.ORG link : CVE-2026-103880

JSON object : View

Products Affected

No product.

CWE

CWE-405

Asymmetric Resource Consumption (Amplification)

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