CVE-2026-11790

Name: CVE-2026-11790
Creator: NVD / NIST
Published: 2026-06-09T14:16:37.197+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.9/10EPSS 0.34%

Last modified Jun 17, 2026

CVE-2026-11790 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. 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. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.9/10

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

EPSS Probability

0.34%

26.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Redhat	Directory Server	11.0
Redhat	Directory Server	12.0
Redhat	Directory Server	13.0
Redhat	389 Directory Server	1.3.6.0
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux	8.0
Redhat	Enterprise Linux	9.0
Redhat	Enterprise Linux	10.0

References

https://access.redhat.com/security/cve/CVE-2026-11790Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2485421Issue Tracking, Vendor Advisory
https://redhat.atlassian.net/browse/PSIRTSUPT-7600Permissions Required

Timeline

Published: Jun 9, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-11790?

How severe is CVE-2026-11790?

CVE-2026-11790 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2026-11790?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-11790?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST