CVE-2026-47875: JobParameterDeserializer bypasses the trusted-type allowlist

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-27 · updated 2026-09-02
Weakness: CWE-502

Description

Applications that deserialize execution contexts with Jackson2ExecutionContextStringSerializer are vulnerable to a deserialization attack if they use an untrusted data source for the job repository. The JobParameterDeserializer does not properly enforce the trusted-types allowlist, allowing an attacker to craft malicious input that can lead to arbitrary code execution, including known Jackson RCE gadgets. Spring Batch 6.0.0 - 6.0.4 Spring Batch 5.2.0 - 5.2.6

Affected products

Spring Batch: from 5.2.0 before 5.2.7; from 6.0.0 before 6.0.4.1 — fixed in 5.2.7, 6.0.4.1

How to fix

Upgrade to a fixed version: Spring Batch 5.2.7, 6.0.4.1. Check the vendor advisory for mitigations.

References

https://spring.io/security/cve-2026-47875

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