Vulnerability Details CVE-2026-11790
A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password storage plugin does not enforce an upper bound on the iteration count extracted from stored password hashes. A privileged attacker who can modify a user's password hash can cause excessive CPU consumption during authentication, resulting in denial of service.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 22.1%
CVSS Severity
CVSS v3 Score 4.9
References
Products affected by CVE-2026-11790
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cpe:2.3:a:redhat:directory_server:11.0
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cpe:2.3:a:redhat:directory_server:12.0
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cpe:2.3:a:redhat:directory_server:13.0
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cpe:2.3:o:redhat:389_directory_server:1.3.6.0
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cpe:2.3:o:redhat:enterprise_linux:10.0
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cpe:2.3:o:redhat:enterprise_linux:7.0
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cpe:2.3:o:redhat:enterprise_linux:8.0
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cpe:2.3:o:redhat:enterprise_linux:9.0