CVE-2026-11790
MEDIUM389-ds-base: 389-ds-base: pbkdf2 password storage plugin unbounded iteration count denial of service
Title source: cnaDescription
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 (3)
Core 3
Core References
Vdb Entry, X_Refsource_Redhat vdb-entry
x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-11790
Issue Tracking, X_Refsource_Redhat issue-tracking
x_refsource_redhat
RHBZ#2485421
https://bugzilla.redhat.com/show_bug.cgi?id=2485421
Scores
CVSS v3
4.9
EPSS
0.0034
EPSS Percentile
26.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-400
Status
published
Products (16)
Red Hat/Red Hat Directory Server 11
Red Hat/Red Hat Directory Server 12
Red Hat/Red Hat Directory Server 13
Red Hat/Red Hat Enterprise Linux 10
Red Hat/Red Hat Enterprise Linux 6
Red Hat/Red Hat Enterprise Linux 7
Red Hat/Red Hat Enterprise Linux 8
Red Hat/Red Hat Enterprise Linux 9
redhat/389_directory_server
1.3.6.0
redhat/directory_server
11.0
... and 6 more
Published
Jun 09, 2026
Tracked Since
Jun 09, 2026