Spring Batch 4-6.0.x FlatFileItemReader Multi-line Record DoS
CVE-2026-47881 Published on August 27, 2026
Denial of Service in Spring Batch FlatFileItemReader via Malformed Input File
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
Vulnerability Analysis
CVE-2026-47881 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Products Associated with CVE-2026-47881
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Affected Versions
Spring Batch:- Version 6.0.0, <= 6.0.4 is affected.
- Version 5.2.0, <= 5.2.6 is affected.
- Version 4.3.0, <= 4.3.13 is affected.