CVE-2026-47881— Denial of Service in Spring Batch FlatFileItemReader via Malformed Input File
Quick assessment
Affected
Spring Spring Batch
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 Batch 的 FlatFileItemReader 支持单个逻辑记录跨越多行物理行的文件——例如，包含嵌入换行符并用引号包裹的 CSV 字段。一个特制的输入文件可能利用该读取器组装多行记录的方式，消耗过多的 CPU 时间和内存，导致批处理任务停滞或内存耗尽。 受影响版本： Spring Batch 6.0.0 - 6.0.4 Spring Batch 5.2.0 - 5.2.6 Spring Batch 4.3.0 - 4.3.13
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-47881
Vulnerability Information
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Vulnerability Title
Denial of Service in Spring Batch FlatFileItemReader via Malformed Input File
Source: CVE Program / CVE List V5
Vulnerability Description
Spring Batch's FlatFileItemReader supports files where a single logical record spans multiple physical lines — for example, a CSV field that contains embedded newlines wrapped in quotes. A specially crafted input file could exploit the way the reader assembles those multi-line records to consume excessive CPU time and memory, causing the batch job to stall or run out of memory.
Spring Batch 6.0.0 - 6.0.4
Spring Batch 5.2.0 - 5.2.6
Spring Batch 4.3.0 - 4.3.13
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
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 Batch | 6.0.0 ~ 6.0.4 | - |
|
II. Public POCs for CVE-2026-47881
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Pages for CVE-2026-47881 (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-2026-59278 | 6.5 MEDIUM | In Spring for Apache Kafka, SSRF via DNS resolution triggered by untrusted java.net types |
| CVE-2026-59274 | 6.5 MEDIUM | Unbounded decompression in UnZipTransformer enables zip-bomb DoS |
| CVE-2026-47864 | 6.4 MEDIUM | Unsafe Java deserialization in SerializingHttpMessageConverter — remote code execution |
| 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-2026-47892 | Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints | |
| CVE-2026-47887 | Spring Framework Open Redirect in UrlFileNameViewController | |
| CVE-2026-47891 | Spring Framework maxInMemorySize Bypassed in Jaxb2Decoder | |
| CVE-2026-47890 | Spring Framework Server Sent Event stream corruption while rendering fragments | |
| CVE-2026-47889 | Spring Framework sameSite Attribute Dropped in JettyCoreServerHttpResponse | |
| CVE-2026-47893 | Spring Framework Request Headers Included in Exception Reasons in HandshakeWebsocketServic | |
| CVE-2026-47883 | Spring Framework Open Redirect in UrlHandlerFilter |
Showing top 20 of 25 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Spring Batch
Same vendor: Spring
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CVE-2026-47893
Spring Framework Request Headers Included in Exception Reaso -
CVE-2026-47892
Spring Framework Header Predicate Bypass in WebFlux Function -
CVE-2026-47891
Spring Framework maxInMemorySize Bypassed in Jaxb2Decoder -
CVE-2026-47890
Spring Framework Server Sent Event stream corruption while r -
CVE-2026-47889
Spring Framework sameSite Attribute Dropped in JettyCoreServ
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