Resource exhaustion in Spring Batch - CVE-2026-47881
Published: August 28, 2026
Vulnerability identifier: #VU146237
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-47881
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled resource consumption in FlatFileItemReader when processing a specially crafted multi-line input file. A remote attacker can supply a specially crafted input file to cause a denial of service.
Only applications using DefaultRecordSeparatorPolicy or JsonRecordSeparatorPolicy are vulnerable; the default SimpleRecordSeparatorPolicy is not affected.
Affected software
Spring Batch
Library Support for Spring
Library Support for Spring
How to mitigate CVE-2026-47881
Install security update from vendor's website.
Spring Batch - addressed in versions 4.3.14, 5.2.7, 6.0.4.1, 6.0.5
Library Support for Spring - update to 3.5.19
Library Support for Spring - update to 3.5.19