Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-41720— Authentication Bypass with Empty Password in Spring LDAP

Quick assessment

Affected
Spring Spring LDAP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

VMware Spring LDAP是美国威睿（VMware）公司的一个LDAP目录服务集成框架。 VMware Spring LDAP 2.4.0至2.4.4版本、3.2.0至3.2.17版本、3.3.0至3.3.7版本和4.0.0至4.0.3版本存在授权问题漏洞，该漏洞源于DirContextAuthenticationStrategy实现未拒绝非空用户名与空密码的绑定请求。

CVSS 7.4 · High EPSS 0.39% · P30

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 4

VendorProduct Version RangeStatus
Spring Spring LDAP 2.4.0< 2.4.5 affected
3.2.0< 3.2.18 affected
3.3.0< 3.3.7.1 affected
4.0.0< 4.0.3.1 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-41720

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Authentication Bypass with Empty Password in Spring LDAP
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
VMware Spring LDAP 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
VMware Spring LDAP是美国威睿（VMware）公司的一个LDAP目录服务集成框架。 VMware Spring LDAP 2.4.0至2.4.4版本、3.2.0至3.2.17版本、3.3.0至3.3.7版本和4.0.0至4.0.3版本存在授权问题漏洞，该漏洞源于DirContextAuthenticationStrategy实现未拒绝非空用户名与空密码的绑定请求。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Spring Spring LDAP 2.4.0 ~ 2.4.5 -

II. Public POCs for CVE-2026-41720

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-41720

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-41720 (1)

Same Patch Batch · Spring · 2026-06-09 · 51 CVEs total

CVE-2026-41717 8.1 HIGH Spring Data MongoDB - SpEL Expression Injection via Annotated Query Parameter Binding
CVE-2026-41732 8.1 HIGH In Spring for Apache Pulsar, overly broad trusted-package matching in header mapper expose
CVE-2026-41855 8.1 HIGH Spring Framework Unsafe Deserialization via Jackson JMS Converters
CVE-2026-41729 8.1 HIGH Spring Data REST SpEL Injection via Map Key in JSON Patch
CVE-2026-41731 8.1 HIGH In Spring for Apache Kafka, overly broad trusted-package matching in header mappers expose
CVE-2026-41003 7.6 HIGH Unencoded HTML Outputs in Spring Security May Allow Cross-Site Scripting
CVE-2026-41716 7.5 HIGH Spring Data web support unbounded negative-result cache keyed on attacker-supplied propert
CVE-2026-41007 7.5 HIGH Spring HATEOAS heap exhaustion through unbounded internal caching
CVE-2026-40984 7.5 HIGH Micrometer HTTP server instrumentations DoS vulnerability
CVE-2026-41850 7.5 HIGH Spring Framework Algorithmic Denial of Service via SpEL Expressions
CVE-2026-40983 7.5 HIGH Micrometer gRPC server instrumentation DoS vulnerability
CVE-2026-41842 7.5 HIGH Spring Framework Denial of Service via Versioned Resources in Spring MVC and WebFlux
CVE-2026-41006 7.5 HIGH Spring HATEOAS Collection+JSON/UBER deserializers do not honor Jackson configuration
CVE-2026-41695 7.5 HIGH Denial of Service in Spring Data Commons Property Path Resolution
CVE-2026-41849 7.5 HIGH Spring Framework Denial of Service via Integer Overflow in SpEL Expressions
CVE-2026-41728 7.5 HIGH Spring Data REST JSON Patch bypasses Jackson read-only property protection on nested objec
CVE-2026-40988 7.5 HIGH Unbounded DEFLATE Inflation in SAML 2.0 Service Provider
CVE-2026-40993 7.3 HIGH Unfiltered Java Native Deserialization of SAML 2.0 Asserting Party Credentials BLOB Databa
CVE-2026-41845 7.1 HIGH Spring Framework Cross-site Scripting via JavaScriptUtils
CVE-2026-47838 6.8 MEDIUM Unauthorized User Impersonation when Using X.509 Client Certificates

Showing top 20 of 51 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Spring LDAP
Same vendor: Spring
Same weakness: CWE-287

V. Comments for CVE-2026-41720

No comments yet

Leave a comment