CVE-2026-41720
Authentication Bypass with Empty Password in Spring LDAP
CVSS Score
7.4
EPSS Score
0.0%
EPSS Percentile
12th
Spring LDAP's DirContextAuthenticationStrategy implementations do not reject a bind request where a non-empty username is paired with an empty or null password. Affected versions: Spring LDAP 2.4.0 through 2.4.4; 3.2.0 through 3.2.17; 3.3.0 through 3.3.7; 4.0.0 through 4.0.3.
| CWE | CWE-287 |
| Vendor | spring |
| Product | spring ldap |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Jun 9, 2026 |
| Last Updated | Jun 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
Spring / Spring LDAP
2.4.0 < 2.4.5 3.2.0 < 3.2.18 3.3.0 < 3.3.8 4.0.0 < 4.0.4