CVE-2026-47875
MediumCVSS 5.6Exploitation Probability (EPSS)
Low risk16th percentile - higher than 16% of all known CVEs
Summary
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.
Risk Assessment
An attacker can exploit untrusted data in the job repository to achieve remote code execution, potentially leading to full system compromise.
Recommendation
Update Spring Batch to a patched version and ensure the job repository is fed only from trusted sources.
Other vulnerabilities in Spring Batch
See all- CVE-2026-47881Medium
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. Affected versions: Spring Batch 6.0.0-6.0.4, 5.2.0-5.2.6, and 4.3.0-4.3.13.
- CVE-2026-47878Medium
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.
Original NVD description (English source)
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