CVE-2026-47878— Unsafe Java deserialization in DefaultExecutionContextSerializer without class allowlist
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 默认 JDBC 任务仓库中使用的 ，将 Base64 解码后的字节直接传入 ，但并未设置能限制类型至可信类白名单的 。 受影响版本： Spring Batch 6.0.0 - 6.0.4 Spring Batch 5.2.6 及更早版本
Possible ATT&CK Techniques 1 AI
T1215
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I. Basic Information for CVE-2026-47878
Vulnerability Information
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Vulnerability Title
Unsafe Java deserialization in DefaultExecutionContextSerializer without class allowlist
Source: CVE Program / CVE List V5
Vulnerability Description
DefaultExecutionContextSerializer, used by default in Spring Batch's JDBC job repository, passes Base64-decoded bytes directly to ObjectInputStream.readObject() without an ObjectInputFilter that restricts types to a trusted class allowlist.
Spring Batch 6.0.0 - 6.0.4
Spring Batch 5.2.6 and earlier
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
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-2026-47878
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-47878 (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-2026-47881 | 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-2026-47880 | 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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