---
id: CVE-2026-47885
title: >-
  The PartEventHttpMessageReader in Spring WebFlux does not enforce the
  maxPartSize limit when maxInMemorySize is set to -1.

  Spring Framework 7.0.0 - 7.0.8

  Spring Framework 6.2.0 - 6.2.19

  Spring Framework 6.1.0 - 6.1.28
summary: >-
  The PartEventHttpMessageReader in Spring WebFlux does not enforce the
  maxPartSize limit when maxInMemorySize is set to -1.

  Spring Framework 7.0.0 - 7.0.8

  Spring Framework 6.2.0 - 6.2.19

  Spring Framework 6.1.0 - 6.1.28
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-770
vendor: vmware
product: spring_framework
affected:
  - 'spring_framework >= 6.1.0, < 6.1.29'
  - 'spring_framework >= 6.2.0, < 6.2.20'
  - 'spring_framework >= 7.0.0, < 7.0.8.1'
patched:
  - spring_framework 7.0.8.1
published: '2026-08-27'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T14:06:46.513'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-47885'
references:
  - url: 'https://spring.io/security/cve-2026-47885'
    label: security@vmware.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-47885.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-47885'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2524837'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-47885'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-47885'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-08-27T15:00:42.104082Z'
ingestedAt: '2026-09-14T13:33:42.966Z'
epss: 0.00366
epssPercentile: 0.27716
---

## Overview

The PartEventHttpMessageReader in Spring WebFlux does not enforce the maxPartSize limit when maxInMemorySize is set to -1.
Spring Framework 7.0.0 - 7.0.8
Spring Framework 6.2.0 - 6.2.19
Spring Framework 6.1.0 - 6.1.28

## Affected

- `spring_framework >= 6.1.0, < 6.1.29`
- `spring_framework >= 6.2.0, < 6.2.20`
- `spring_framework >= 7.0.0, < 7.0.8.1`

## Remediation

Upgrade past the affected range:

- `spring_framework 7.0.8.1`

## Vendor advisories

- **Red Hat VEX** · Important · affected: Red Hat Fuse 7 · no fix planned: Red Hat Fuse 7 · updated 2026-09-25 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-47885.json)