---
id: CVE-2026-59313
title: >-
  Spring MVC applications using the functional web framework are vulnerable to
  stream corruption when using Server-Sent Events (SSE).

  Spring Framework 7.0.0 - 7.0.8

  Spring Framework 6.2.0 - 6.2.19

  Spring Framework 6.1.0 - 6.1.28

  Spring Fra…
summary: >-
  Spring MVC applications using the functional web framework are vulnerable to
  stream corruption when using Server-Sent Events (SSE).

  Spring Framework 7.0.0 - 7.0.8

  Spring Framework 6.2.0 - 6.2.19

  Spring Framework 6.1.0 - 6.1.28

  Spring Fra…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-93
published: '2026-08-27'
updated: '2026-08-28'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-59313'
references:
  - url: 'https://spring.io/security/cve-2026-59313'
    label: security@vmware.com
tags:
  - nvd
epss: 0.00387
epssPercentile: 0.3263
ingestedAt: '2026-08-29T21:42:35.851Z'
---

## Overview

Spring MVC applications using the functional web framework are vulnerable to stream corruption when using Server-Sent Events (SSE).
Spring Framework 7.0.0 - 7.0.8
Spring Framework 6.2.0 - 6.2.19
Spring Framework 6.1.0 - 6.1.28
Spring Framework 6.0.0 - 6.0.30
Spring Framework 5.3.0 - 5.3.49

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.