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CVE-2026-47893— Spring Framework Request Headers Included in Exception Reasons in HandshakeWebsocketService

Quick assessment

Affected
Spring Spring Framework
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.

支持 WebSocket 连接的 Spring WebFlux 应用程序可能会间接暴露敏感的用户信息，因为其异常原因（exception reason）中包含了请求头（request headers）。 受影响版本： Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 -

AI Predicted 4.3 Difficulty: Moderate

Possible ATT&CK Techniques 1 AI

T1218 · System Binary Proxy Execution
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I. Basic Information for CVE-2026-47893

Vulnerability Information
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Vulnerability Title
Spring Framework Request Headers Included in Exception Reasons in HandshakeWebsocketService
Source: CVE Program / CVE List V5
Vulnerability Description
A Spring WebFlux application that supports WebSocket connections may expose indirectly sensitive user information by including request headers in an exception reason. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.25.RELEASE and earlier
Source: CVE Program / CVE List V5
CVSS Information
N/A
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 Framework 7.0.0 ~ 7.0.8 -

II. Public POCs for CVE-2026-47893

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III. Intelligence Information for CVE-2026-47893

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Vendor Advisories for CVE-2026-47893 (1)

Same Patch Batch · Spring · 2026-08-27 · 25 CVEs total

CVE-2026-59270 9.4 CRITICAL Spring Security embedded UnboundID LDAP server exposes well-known administrative bind DN o
CVE-2026-47877 8.2 HIGH Spring Security Authorization Server Default Consent Page is vulnerable to Cross-Site Scri
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-2026-59275 6.6 MEDIUM Remote JVM termination: nested-array Java deserialization bypasses allowlist, triggers Sta
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-2026-47864 6.4 MEDIUM Unsafe Java deserialization in SerializingHttpMessageConverter — remote code execution
CVE-2026-47881 5.9 MEDIUM Denial of Service in Spring Batch FlatFileItemReader via Malformed Input File
CVE-2026-47875 5.6 MEDIUM JobParameterDeserializer bypasses the trusted-type allowlist
CVE-2026-47878 5.6 MEDIUM Unsafe Java deserialization in DefaultExecutionContextSerializer without class allowlist
CVE-2026-47880 5.4 MEDIUM DefaultJmsHeaderMapper copies all JMS user properties into MessageHeaders without excludin
CVE-2026-59271 5.3 MEDIUM Admin password disclosed in BrokerNotAliveException message
CVE-2026-47894 4.9 MEDIUM Spring Cloud Config Server Native Environment Repository Exposure
CVE-2026-47891 Spring Framework maxInMemorySize Bypassed in Jaxb2Decoder
CVE-2026-47885 Spring Framework maxPartSize Ignored in PartEventHttpMessageReader
CVE-2026-47890 Spring Framework Server Sent Event stream corruption while rendering fragments
CVE-2026-47889 Spring Framework sameSite Attribute Dropped in JettyCoreServerHttpResponse
CVE-2026-47887 Spring Framework Open Redirect in UrlFileNameViewController
CVE-2026-47892 Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints

Showing top 20 of 25 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Spring Framework
Same vendor: Spring

V. Comments for CVE-2026-47893

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