LiveActive security incident?Get immediate response
CVE Record

CVE-2020-26168: The LDAP authentication method in LdapLoginModule in Hazelcast IMDG Enterprise 4.x before 4.0.3, and Jet En...

The LDAP authentication method in LdapLoginModule in Hazelcast IMDG Enterprise 4.x before 4.0.3, and Jet Enterprise 4.x through 4.2, doesn't verify properly the password in some system-user-dn scenarios. As a result, users (clients/members) can be authenticated even if they provide invalid passwords.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2020-26168 is an LDAP authentication bypass in Hazelcast IMDG Enterprise and Jet Enterprise 4.x. In certain system-user-dn configurations, users could authenticate even when supplying an invalid password. That weakens identity enforcement for cluster clients or members.

Executive priority

Prioritize remediation where Hazelcast clusters protect sensitive data, production workloads, or internal services. The business concern is failed password validation, not merely a configuration warning.

Technical view

The issue is in LdapLoginModule LDAP authentication. Hazelcast reports improper password verification in some system-user-dn scenarios affecting IMDG Enterprise 4.x before 4.0.3 and Jet Enterprise 4.x through 4.2. The bundle provides no CVSS, CWE, or detailed exploit mechanics.

Likely exposure

Exposure is likely limited to organizations running affected Hazelcast Enterprise 4.x products with LDAP authentication configured, especially configurations using system-user-dn. Non-LDAP deployments are not described as affected in the bundle.

Exploitation context

The source bundle does not report active exploitation, public exploit availability, or CISA KEV listing. Treat this as a serious authentication-control failure, but do not assume internet-scale exploitation from the available evidence.

Researcher notes

Key unknowns are CVSS scoring, exact configuration preconditions, and vendor-confirmed remediation details beyond affected version boundaries. Avoid assuming broader Hazelcast Community impact because the bundle names Enterprise products only.

Mitigation direction

  • Upgrade Hazelcast IMDG Enterprise to 4.0.3 or later.
  • Upgrade Jet Enterprise beyond the affected 4.x through 4.2 range.
  • Review Hazelcast vendor advisories for product-specific LDAP guidance.
  • Temporarily reduce access to affected clusters while remediation is pending.
  • Prioritize environments where LDAP gates client or member access.

Validation and detection

  • Inventory Hazelcast IMDG Enterprise and Jet Enterprise versions.
  • Confirm whether LDAP authentication uses LdapLoginModule.
  • Check for system-user-dn LDAP authentication configurations.
  • Verify upgraded environments are no longer in affected version ranges.
  • Review authentication logs for unexpected successful logins.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-26168 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.