CVE-2026-11790: Uncontrolled Resource Consumption in Red Hat Red Hat Directory Server 11
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.
CVE-2026-11790: Uncontrolled Resource Consumption in Red Hat Red Hat Directory Server 11
Description
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.
CVSS v3.1
Score 4.9medium
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-06-09T13:00:11.043Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-11790","vendor":"Red Hat"}]
Threat ID: 6a28145b8dd33fbd85364a2f
Added to database: 6/9/2026, 1:25:47 PM
Last updated: 6/9/2026, 1:25:55 PM
Views: 1
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