Home

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.

PUBLISHED Reserved 2026-06-09 | Published 2026-06-09 | Updated 2026-06-09 | Assigner redhat




MEDIUM: 4.9CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Problem types

Uncontrolled Resource Consumption

Product status

Default status
affected

Default status
affected

Default status
affected

Default status
affected

Default status
unaffected

Default status
affected

Default status
affected

Default status
affected

Timeline

2026-04-16:Reported to Red Hat.
2026-04-16:Made public.

References

access.redhat.com/security/cve/CVE-2026-11790 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2485421 (RHBZ#2485421) issue-tracking

redhat.atlassian.net/browse/PSIRTSUPT-7600

cve.org (CVE-2026-11790)

nvd.nist.gov (CVE-2026-11790)

Download JSON