CVE-2026-11790

medium

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.

References

https://redhat.atlassian.net/browse/PSIRTSUPT-7600

https://bugzilla.redhat.com/show_bug.cgi?id=2485421

https://access.redhat.com/security/cve/CVE-2026-11790

Details

Source: Mitre, NVD

Published: 2026-06-09

Updated: 2026-06-30

Risk Information

CVSS v2

Base Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:M/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 4.9

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

Severity: Medium

EPSS

EPSS: 0.00073