CVE-2026-15041

LOW

389-ds-base: 389-ds-base: non-constant-time comparison in pbkdf2-sha256 password verification

Title source: cna
STIX 2.1

Description

A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp() for comparing password hashes instead of a constant-time comparison function. A remote attacker could potentially use timing measurements of LDAP bind attempts to infer partial hash information, though practical exploitation is extremely difficult due to PBKDF2 computational overhead.

References (2)

Core 2
Core References
Vdb Entry, X_Refsource_Redhat vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-15041
Issue Tracking, X_Refsource_Redhat issue-tracking x_refsource_redhat
RHBZ#2498022
https://bugzilla.redhat.com/show_bug.cgi?id=2498022

Scores

CVSS v3 3.7
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-208
Status published
Products (8)
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
Published Jul 08, 2026
Tracked Since Jul 08, 2026