EUVD-2026-66844
GHSA-jv7x-jjj5-pqwg
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AC:H reflects that exploitation depends on whether the batch job reads attacker-controlled files, a deployment-specific condition outside attacker control.
Primary rating from Vendor (vmware).
CVSS VectorNVD
Lifecycle Timeline
6DescriptionNVD
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. Spring Batch 6.0.0 - 6.0.4 Spring Batch 5.2.0 - 5.2.6 Spring Batch 4.3.0 - 4.3.13
AnalysisAI
Uncontrolled resource consumption in Spring Batch's FlatFileItemReader allows denial-of-service against batch jobs that process externally-supplied flat files containing multi-line records. When a specially crafted file is fed to the reader - exploiting its logic for assembling logical records spread across multiple physical lines (e.g., quoted CSV fields with embedded newlines) - the job stalls or exhausts memory, disrupting batch processing pipelines. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to supply a crafted flat file that FlatFileItemReader will process - meaning the batch job must read from a location the attacker can write to (e.g., a shared NFS mount, a cloud storage bucket without strict write ACLs, an upload endpoint that feeds files into the batch pipeline). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The official CVSS 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) represents a worst-case, deployment-optimistic assessment. … 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 | Apply the vendor-released fix per the Spring Security Advisory at https://spring.io/security/cve-2026-47881. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Spring Batch deployments and determine which versions are in use (check versions 4.3.0-4.3.13, 5.2.0-5.2.6, and 6.0.0-6.0.4). …
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External POC / Exploit Code
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