CVE-2026-41720
highpriority · track · 0EPSS 0.003 · 17 %ileEUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–7.4
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (8)
Products and version ranges known to be affected.
- Maven org.springframework.ldap:spring-ldap-core≤ 2.4.4osvUSpkg:maven/org.springframework.ldap/spring-ldap-core
- Maven org.springframework.ldap:spring-ldap-core3.2.0 → 3.2.16osvUSpkg:maven/org.springframework.ldap/spring-ldap-core
- Maven org.springframework.ldap:spring-ldap-core3.3.0 → 3.3.8osvUSpkg:maven/org.springframework.ldap/spring-ldap-core
- Maven org.springframework.ldap:spring-ldap-core4.0.0 → 4.0.4osvUSpkg:maven/org.springframework.ldap/spring-ldap-core
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-jrv5-8w28-4265Spring LDAP has Authentication Bypass with Empty Password2026-06-09ghsa · osvUS
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.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
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