CVE-2026-41720

HIGH

Authentication Bypass with Empty Password in Spring LDAP

Title source: cna

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.

References (1)

Core 1

Core References

https://spring.io/security/cve-2026-41720

Scores

CVSS v3 7.4

EPSS 0.0024

EPSS Percentile 14.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-287

Status published

Products (4)

Spring/Spring LDAP 2.4.0 - 2.4.5

Spring/Spring LDAP 3.2.0 - 3.2.18

Spring/Spring LDAP 3.3.0 - 3.3.8

Spring/Spring LDAP 4.0.0 - 4.0.4

Published Jun 09, 2026

Tracked Since Jun 09, 2026