High severity · published Aug 27, 2026
CVE-2026-47881
Denial of Service in Spring Batch FlatFileItemReader via Malformed Input File
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
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
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SB
Spring Batch · Spring
6.0.0 through 6.0.4; 5.2.0 through 5.2.6; 4.3.0 through 4.3.13 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47881
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-47881
Mitigation
https://spring.io/security/cve-2026-47881
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