{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "4.0"
              },
              {
                "fixed": "4.0.3"
              },
              {
                "introduced": "4.0"
              },
              {
                "last_affected": "4.2"
              }
            ]
          },
          "events": [
            {
              "introduced": "8b959f580ab91d42c071eac142feb04c5acea72f"
            },
            {
              "fixed": "8b9f09b66347a008d0a58bb62010e95305586c7e"
            },
            {
              "introduced": "8b959f580ab91d42c071eac142feb04c5acea72f"
            },
            {
              "last_affected": "ba7949935d4765029611fa6729716825f87621c6"
            }
          ],
          "repo": "https://github.com/hazelcast/hazelcast",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "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.",
  "id": "CVE-2020-26168",
  "modified": "2026-04-01T23:08:47.929841408Z",
  "published": "2020-11-09T22:15:13.257Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://docs.hazelcast.org/docs/ern/index.html#4-0-3"
    },
    {
      "type": "ADVISORY",
      "url": "https://hazelcast.zendesk.com/hc/en-us/articles/360050161951--IMDG-Enterprise-4-0-4-0-1-4-0-2-LDAP-Authentication-Bypass"
    },
    {
      "type": "ADVISORY",
      "url": "https://hazelcast.zendesk.com/hc/en-us/articles/360051384932--JET-Enterprise-4-0-4-1-4-1-1-4-2-LDAP-Authentication-Bypass"
    },
    {
      "type": "ADVISORY",
      "url": "https://jet-start.sh/blog/2020/10/23/jet-43-is-released"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}