CVE-2026-59277— Spring Security InetAddressMatchers Incomplete Internal Network Classification
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.
Spring Security 的 工具类提供了 和 构建器，用于构造 ，将给定的 IP 地址分类为属于内部（私有）或外部（公共）网络。 Spring Security 版本：7.1.0
Possible ATT&CK Techniques 1 AI
T1595 · Active Scanning
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I. Basic Information for CVE-2026-59277
Vulnerability Information
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Vulnerability Title
Spring Security InetAddressMatchers Incomplete Internal Network Classification
Source: CVE Program / CVE List V5
Vulnerability Description
Spring Security's InetAddressMatchers utility provides matchInternal() and matchExternal() builders for constructing an InetAddressMatcher that classifies a given IP address as belonging to an internal (private) or external (public) network.
Spring Security 7.1.0
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Spring | Spring Security | 7.1.0 | - |
|
II. Public POCs for CVE-2026-59277
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-59277 (1)
Same Patch Batch · Spring · 2026-08-27 · 64 CVEs total
| CVE-2026-59270 | 9.4 CRITICAL | Spring Security embedded UnboundID LDAP server exposes well-known administrative bind DN o |
| CVE-2026-59324 | 8.2 HIGH | fluxTransform shared RequestMessageHolder causes cross-message header leakage under async |
| CVE-2026-47877 | 8.2 HIGH | Spring Security Authorization Server Default Consent Page is vulnerable to Cross-Site Scri |
| 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-2026-59293 | 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-2026-59284 | 6.6 MEDIUM | Spring Cloud Commons no allow list for writable env actuator endpoint |
| 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-2026-47881 | 5.9 MEDIUM | Denial of Service in Spring Batch FlatFileItemReader via Malformed Input File |
| CVE-2026-59294 | 5.9 MEDIUM | Arbitrary File Write via Path Traversal in ResourceCacheService |
Showing top 20 of 64 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Spring Security
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CVE-2026-59276
Timing Attack via Non-Constant-Time Comparison of Sensitive -
CVE-2026-59270
Spring Security embedded UnboundID LDAP server exposes well- -
CVE-2026-47877
Spring Security Authorization Server Default Consent Page is -
CVE-2026-47842
Deterministic AES/CBC Encryption in Spring Security AesBytes -
CVE-2026-47841
WebAuthn User Verification Bypass via Session Serialization
Same vendor: Spring
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CVE-2026-59324
fluxTransform shared RequestMessageHolder causes cross-messa -
CVE-2026-59322
EmbeddedHeadersJsonMessageMapper default gives wire peer ful -
CVE-2026-59321
Shared JSR-223 ScriptEngine evaluated concurrently without T -
CVE-2026-59320
In Spring AMQP the link credit never replenished on listener -
CVE-2026-59319
RediSearch Tag Injection in RedisChatMemoryRepository Allows
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