EUVD-2026-66841
GHSA-2pwq-qhmm-3vg8
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attacker must pre-position write access to the JDBC repository (PR:L) and exploit a suitable classpath gadget chain (AC:H); success yields full RCE, so C:H/I:H/A:H.
Primary rating from Vendor (vmware).
CVSS VectorNVD
Lifecycle Timeline
6DescriptionNVD
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
AnalysisAI
Unsafe Java deserialization in Spring Batch's DefaultExecutionContextSerializer exposes the JDBC job repository to potential remote code execution via gadget-chain exploitation. The serializer passes Base64-decoded bytes directly to ObjectInputStream.readObject() without an ObjectInputFilter restricting instantiable types, creating a CWE-502 attack surface that any suitable gadget chain on the classpath can weaponize. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that an attacker can write attacker-controlled bytes into the execution_context column of the Spring Batch JDBC repository tables (typically BATCH_JOB_EXECUTION_CONTEXT or BATCH_STEP_EXECUTION_CONTEXT). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS vector (AV:N/AC:L/PR:N/UI:N, score 7.3) scores the vulnerability as unauthenticated and low-complexity, but this likely overstates accessibility: an attacker must first write malicious serialized data to the Spring Batch JDBC job repository, which in practice requires database write privileges or a separate write-path vulnerability in the application. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to a patched release as the primary fix: Spring Batch 6.0.5 or later for the 6.x branch, and 5.2.7 or later for the 5.x branch - confirm exact fix versions against the official advisory at https://spring.io/security/cve-2026-47878, as precise fix versions are not independently verified in the available data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify and catalog all Spring Batch deployments in production and development running affected versions (5.2.6 and earlier, 6.0.0-6.0.4) that use JDBC job repositories; review network access logs and firewall rules for who can reach these endpoints. …
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Same weakness CWE-502 – Deserialization of Untrusted Data
View allSame technique Deserialization
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External POC / Exploit Code
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