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
MEDIUM
Vulnerability intelligence
CVE-2026-47878
CVSS 3.15.6
SeverityMedium
Known exploitedNo
NVD references:
Primary source: NIST National Vulnerability Database