Allocation of Resources Without Limits or Throttling in Spring Framework - CVE-2026-47885
Published: August 28, 2026
Vulnerability identifier: #VU146221
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-47885
CWE-ID: CWE-770
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 improper control of resource consumption in PartEventHttpMessageReader when processing multipart request bodies with maxInMemorySize set to -1. A remote attacker can send a specially crafted multipart request to cause a denial of service.
The issue affects controller methods that use an @RequestBody Flux<PartEvent> argument.
Affected software
Spring Framework
Library Support for Spring
Library Support for Spring
How to mitigate CVE-2026-47885
Install security update from vendor's website.
Spring Framework - addressed in versions 6.1.29, 6.2.20, 7.0.8.1, 7.0.9
Library Support for Spring - update to 3.5.19
Library Support for Spring - update to 3.5.19