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CVE-2026-11790

389-ds-base: 389-ds-base: pbkdf2 password storage plugin unbounded iteration count denial of service

Published: Jun 9, 2026Updated: Jun 9, 2026 Sources: CVE List NVD
NVD MITRE
4.9CVSS
MEDIUM

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High

Weaknesses

CWE-400

Affected Products

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
and 3 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Workaround Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://access.redhat.com/security/cve/CVE-2026-11790
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2485421
bugzilla.redhat.com
https://redhat.atlassian.net/browse/PSIRTSUPT-7600
redhat.atlassian.net

Timeline

Published
Jun 9, 2026
Last Updated
Jun 9, 2026

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