medium4.9
CVE-2026-11790
A flaw was found in 389 Directory Server.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Redhat | Directory Server | Versions 11.0, 12.0, 13.0 |
| Redhat | 389 Directory Server | Version 1.3.6.0 |
| Redhat | Enterprise Linux | Versions 7.0, 8.0, 9.0, 10.0 |