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  4. CVE 2026 15041 389 ds base 389 ds base non constant time
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Back to active CVEs
Low · CVSS 3.7CVE-2026-15041

389-ds-base: 389-ds-base: non-constant-time comparison in pbkdf2-sha256 password verificationCVE-2026-15041

Answer in brief

CVE-2026-15041 records a Low severity (CVSS 3.7) vulnerability in 389-ds-base: 389-ds-base: non-constant-time comparison in pbkdf2-sha256 password verification. The current sources do not mark it as known exploited. The current feed maps Red Hat/389-ds:1.4/389-ds-base (generic), Red Hat/389-ds-base (generic), Red Hat/redhat-ds:11/389-ds-base (generic), Red Hat/redhat-ds:12/389-ds-base (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 8, 2026Updated Jul 8, 2026Source checked Nov 4, 2026First seen by HOL Jul 8, 2026Material review Jul 8, 2026
Upstream Advisory

Key facts

Risk
Low · CVSS 3.7
Exploitation
Not marked as known exploited
Affected software
4 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 3.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/389-ds:1.4/389-ds-base (generic), Red Hat/389-ds-base (generic), Red Hat/redhat-ds:11/389-ds-base (generic), Red Hat/redhat-ds:12/389-ds-base (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Red Hat/389-ds:1.4/389-ds-basegeneric*Not reported
Red Hat/389-ds-basegeneric*Not reported
Red Hat/redhat-ds:11/389-ds-basegeneric*Not reported
Red Hat/redhat-ds:12/389-ds-basegeneric*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Red Hat/389-ds:1.4/389-ds-base, Red Hat/389-ds-base, Red Hat/redhat-ds:11/389-ds-base.
  2. 2Review the reported fix. Source-reported workaround: If possible, configure 389 Directory Server to use an alternative password storage scheme (e.g., SSHA512 or GOST-Yescrypt) which uses constant-time comparison.

Evidence timeline and material changes

  1. Published upstream

    Jul 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Jul 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Jul 8, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-208
Source
CVE List V5
Source checked
Nov 4, 2026
References
2 linked sources
Open source record