The LDAP authentication method in LdapLoginModule in Hazelcast IMDG Enterprise 4.x before…
Priority MEDIUM 45CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
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.
Why it matters now
EPSS 0.01596 75th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-26168
- 2026-10-03 Alias added: GHSA-whg4-vj5j-j9x2
References
Advisory 4
- https://docs.hazelcast.org/docs/ern/index.html#4-0-3
- https://jet-start.sh/blog/2020/10/23/jet-43-is-released
- https://hazelcast.zendesk.com/hc/en-us/articles/360050161951--IMDG-Enterprise-4-0-4-0-1-4-0-2-LDAP-Authentication-Bypass
- https://hazelcast.zendesk.com/hc/en-us/articles/360051384932--JET-Enterprise-4-0-4-1-4-1-1-4-2-LDAP-Authentication-Bypass
More Hazelcast vulnerabilities
- TI-2022-16762 The Connection handler in Hazelcast and Hazelcast Jet allows a remote unauthenticated… CVSS 3.1CRITICAL 9.1
- TI-2022-00199 Improper Restriction of XML External Entity Reference in hazelcast/hazelcast CVSS 3.1CRITICAL 9.8
- TI-2016-08788 In Hazelcast before 3.11, the cluster join procedure is vulnerable to remote code… CVSS 3.0HIGH 8.1
- TI-2023-16430 In Hazelcast through 5.0.4, 5.1 through 5.1.6, and 5.2 through 5.2.3, executor services… CVSS 3.1HIGH 8.8
- TI-2023-24616 In Hazelcast through 4.1.10, 4.2 through 4.2.8, 5.0 through 5.0.5, 5.1 through 5.1.7, 5.2… CVSS 3.1HIGH 7.6
- TI-2023-24617 In Hazelcast Platform through 5.3.4, a security issue exists within the SQL mapping for… CVSS 3.1MEDIUM 6.5
Sources
- CVE-2020-26168 · CVE Program
- CVE-2020-26168 · NVD
- FIRST EPSS
- GHSA-whg4-vj5j-j9x2 · GitHub Advisory Database · CC BY 4.0
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