CVE-2026-47878

Spring Batch's DefaultExecutionContextSerializer , used by default in the JDBC job repository, deserializes Base64-decoded bytes via ObjectInputStream.readObject() without an ObjectInputFilter class allowlist, enabling unsafe Java deserialization . Affected versions are Spring Batch 6.0.0–6.0.4 a...

EUVD-2026-66841

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...

MongoDB-backed Spring Batch jobs and more in Spring Boot 4.1

Spring Batch was introduced many years before MongoDB existed, and its design assumed the presence of a SQL database in which to store the state of Spring Batch jobs. But that was decades ago, and a common question for anyone new to Spring Batch was, "Why does this thing need to talk to a SQL...

Deserialization of Untrusted Data in Spring Batch

When configured to enable default typing, Jackson contained a deserialization vulnerability that could lead to arbitrary code execution. Jackson fixed this vulnerability by blacklisting known "deserialization gadgets". Spring Batch configures Jackson with global default typing enabled which means...

Deserialization of untrusted data

When configured to enable default typing, Jackson contained a deserialization vulnerability that could lead to arbitrary code execution. Jackson fixed this vulnerability by blacklisting known "deserialization gadgets". Spring Batch configures Jackson with global default typing enabled which means...