CVE-2026-15041 (GCVE-0-2026-15041)

Vulnerability from cvelistv5 – Published: 2026-07-08 10:15 – Updated: 2026-07-08 13:44
VLAI
Title
389-ds-base: 389-ds-base: non-constant-time comparison in pbkdf2-sha256 password verification
Summary
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.
Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-08 13:44 UTC
CWE
  • CWE-208 - Observable Timing Discrepancy
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1020 records in the last 180 days details
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-15041 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2498022 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-07-08 09:58
Credits
Red Hat would like to thank Andrew Rukin (Arenadata) for reporting this issue.
Show details on NVD website
To clipboard 

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              "time": "2026-07-08T09:55:42.287Z",
              "value": "Reported to Red Hat."
            },
            {
              "lang": "en",
              "time": "2026-07-08T09:58:21.463Z",
              "value": "Made public."
            }
          ],
          "title": "389-ds-base: 389-ds-base: non-constant-time comparison in pbkdf2-sha256 password verification",
          "workarounds": [
            {
              "lang": "en",
              "value": "If possible, configure 389 Directory Server to use an alternative password storage scheme (e.g., SSHA512 or GOST-Yescrypt) which uses constant-time comparison."
            }
          ],
          "x_generator": {
            "engine": "cvelib 1.8.0"
          },
          "x_redhatCweChain": "CWE-208: Observable Timing Discrepancy"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-15041",
        "datePublished": "2026-07-08T10:15:30.480Z",
        "dateReserved": "2026-07-08T10:00:02.126Z",
        "dateUpdated": "2026-07-08T13:44:19.153Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Sightings

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