Vulnerability · Published Jun 9, 2026 · Assigned by vmware
CVE-2026-41720Authentication Bypass with Empty Password in Spring LDAP
High 7.4
In plain English
A high-severity improper authentication in Spring LDAP from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.4High
Exploit odds (30 days)0.3%top 82.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.springframework.ldap:spring-ldap-core | 4.0.4 | GHSA-jrv5-8w28-4265 |
| Maven | org.springframework.ldap:spring-ldap-core | 3.3.8 | GHSA-jrv5-8w28-4265 |
| Maven | org.springframework.ldap:spring-ldap-core | no fix listed | GHSA-jrv5-8w28-4265 |
| Maven | org.springframework.ldap:spring-ldap-core | no fix listed | GHSA-jrv5-8w28-4265 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Spring | Spring LDAP | 2.4.0 – before 2.4.53.2.0 – before 3.2.183.3.0 – before 3.3.7.14.0.0 – before 4.0.3.1 |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N