PT-2026-47780 · Unknown · 389 Directory Server

Ian Murphy · CVE-2026-11790 · Published 2026-06-09 · Updated 2026-07-20

Positive Technologies (AI Summary)

CVSS v3.1

4.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions 389 Directory Server (affected versions not specified)

Description A flaw exists in the PBKDF2-SHA256 password storage plugin where the system fails to enforce an upper bound on the iteration count extracted from stored password hashes. A privileged attacker with the ability to modify a user's password hash can trigger excessive CPU consumption during the authentication process, leading to a denial of service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2026-11790

SUSE-SU-2026:3136-1

SUSE-SU-2026:3137-1

SUSE-SU-2026:3138-1

Affected Products

389 Directory Server

References · 46

• https://osv.dev/vulnerability/SUSE-SU-2026:3136-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-11790 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:3137-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-11790 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:3138-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-11790 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2485421 · Vendor Advisory
• https://access.redhat.com/security/cve/CVE-2026-11790 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-11790 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-11790 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-11790 · Security Note
• https://bugzilla.suse.com/1268115 · Note
• https://t.me/cveNotify/180850 · Telegram Post
• https://bugzilla.suse.com/1268058 · Note
• https://suse.com/support/update/announcement/2026/suse-su-20263137-1 · Note