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CVE-2026-59270— Spring Security embedded UnboundID LDAP server exposes well-known administrative bind DN on all network interfaces

Quick assessment

Affected
Spring Spring Security
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 Security是美国VMware公司开源的一套为Spring应用提供安全保护的安全框架。 VMware Spring Security 7.1.0版本、7.0.0版本至7.0.6版本、6.5.0版本至6.5.11版本、6.4.0版本至6.4.18版本、5.8.0版本至5.8.27版本和5.7.0版本至5.7.25版本存在安全漏洞，该漏洞源于嵌入式UnboundID LDAP服务器（UnboundIdContainer）无条件注册管理凭据并将监听器绑定到所有可用网络接口，可能导

CVSS 9.4 · Critical EPSS 0.40% · P33

Possible ATT&CK Techniques 2 AI

T1071.004 · DNS T1021 · Remote Services

Affected Version Matrix 6

VendorProduct Version RangeStatus
Spring Spring Security 7.1.0 affected
7.0.0≤ 7.0.6 affected
6.5.0≤ 6.5.11 affected
6.4.0≤ 6.4.18 affected
5.8.0≤ 5.8.27 affected
5.7.0≤ 5.7.25 affected
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I. Basic Information for CVE-2026-59270

Vulnerability Information
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Vulnerability Title
Spring Security embedded UnboundID LDAP server exposes well-known administrative bind DN on all network interfaces
Source: CVE Program / CVE List V5
Vulnerability Description
Spring Security's embedded UnboundID LDAP server (UnboundIdContainer) unconditionally registers an administrative credential and binds its listener to all available network interfaces. Spring Security 7.1.0 Spring Security 7.0.0 - 7.0.6 Spring Security 6.5.0 - 6.5.11 Spring Security 6.4.0 - 6.4.18 Spring Security 5.8.0 - 5.8.27 Spring Security 5.7.0 - 5.7.25
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
VMware Spring Security 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
VMware Spring Security是美国VMware公司开源的一套为Spring应用提供安全保护的安全框架。 VMware Spring Security 7.1.0版本、7.0.0版本至7.0.6版本、6.5.0版本至6.5.11版本、6.4.0版本至6.4.18版本、5.8.0版本至5.8.27版本和5.7.0版本至5.7.25版本存在安全漏洞，该漏洞源于嵌入式UnboundID LDAP服务器（UnboundIdContainer）无条件注册管理凭据并将监听器绑定到所有可用网络接口，可能导
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 Security 7.1.0 -

II. Public POCs for CVE-2026-59270

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III. Intelligence Information for CVE-2026-59270

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Vendor Advisories for CVE-2026-59270 (1)

Same Patch Batch · Spring · 2026-08-27 · 64 CVEs total

CVE-2026-47877 8.2 HIGH Spring Security Authorization Server Default Consent Page is vulnerable to Cross-Site Scri
CVE-2026-59324 8.2 HIGH fluxTransform shared RequestMessageHolder causes cross-message header leakage under async
CVE-2026-59316 8.2 HIGH Spring Authorization Server Default Consent Page is vulnerable to Cross-Site Scripting (XS
CVE-2026-59307 8.0 HIGH Deserialization allow-list silently bypassed: setBeanClassLoader replaces deserializer but
CVE-2026-47879 7.7 HIGH Spring Cloud Gateway SSRF and native file access with gRPC
CVE-2026-47849 7.1 HIGH Spring Data REST allows mutation of identifier and version properties via JSON Patch
CVE-2026-59311 6.8 MEDIUM Fixed predictable /tmp/ziptransformer work directory enables symlink pre-creation
CVE-2026-59272 6.8 MEDIUM Log4j2 AmqpAppender disables TLS hostname verification by default
CVE-2026-59284 6.6 MEDIUM Spring Cloud Commons no allow list for writable env actuator endpoint
CVE-2026-59293 6.6 MEDIUM SMB minimum protocol dialect defaults to SMB1
CVE-2026-59275 6.6 MEDIUM Remote JVM termination: nested-array Java deserialization bypasses allowlist, triggers Sta
CVE-2026-59317 6.5 MEDIUM In Spring for Apache Kafka, missing header validation in DeadLetterPublishingRecovererFact
CVE-2026-59274 6.5 MEDIUM Unbounded decompression in UnZipTransformer enables zip-bomb DoS
CVE-2026-59278 6.5 MEDIUM In Spring for Apache Kafka, SSRF via DNS resolution triggered by untrusted java.net types
CVE-2026-59320 6.5 MEDIUM In Spring AMQP the link credit never replenished on listener exception path
CVE-2026-47864 6.4 MEDIUM Unsafe Java deserialization in SerializingHttpMessageConverter — remote code execution
CVE-2026-59322 6.3 MEDIUM EmbeddedHeadersJsonMessageMapper default gives wire peer full control of MessageHeaders
CVE-2026-59294 5.9 MEDIUM Arbitrary File Write via Path Traversal in ResourceCacheService
CVE-2026-47881 5.9 MEDIUM Denial of Service in Spring Batch FlatFileItemReader via Malformed Input File
CVE-2026-59276 5.9 MEDIUM Timing Attack via Non-Constant-Time Comparison of Sensitive Values

Showing top 20 of 64 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Spring Security
Same vendor: Spring

V. Comments for CVE-2026-59270

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