CVE-2026-22735: Server Sent Event stream corruption

Published Mar 19, 2026
·
Updated

Spring MVC and WebFlux applications are vulnerable to stream corruption when using Server-Sent Events (SSE). This issue affects Spring Foundation: from 7.0.0 through 7.0.5, from 6.2.0 through 6.2.16, from 6.1.0 through 6.1.25, from 5.3.0 through 5.3.46.

Affected Software

10 affected componentsFixes available
VMware Spring Framework>=7.0.0<=7.0.5, >=6.2.0<=6.2.16, >=6.1.0<=6.1.25, >=5.3.0<=5.3.46
maven/org.springframework:spring-webflux>=5.3.0<=5.3.39
maven/org.springframework:spring-webflux>=6.0.0<=6.1.21
maven/org.springframework:spring-webflux>=6.2.0<6.2.17
6.2.17
maven/org.springframework:spring-webflux>=7.0.0-M1<7.0.6
7.0.6
maven/org.springframework:spring-webmvc>=5.3.0<=5.3.39
maven/org.springframework:spring-webmvc>=6.0.0<=6.1.21
maven/org.springframework:spring-webmvc>=6.2.0<6.2.17
6.2.17
maven/org.springframework:spring-webmvc>=7.0.0-M1<7.0.6
7.0.6
IBM API Connect V12 OnPrem<=All

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade maven/org.springframework:spring-webflux to a version that resolves this vulnerability.

    Fixed in 6.2.17
  2. Upgrade

    Upgrade maven/org.springframework:spring-webflux to a version that resolves this vulnerability.

    Fixed in 7.0.6
  3. Upgrade

    Upgrade maven/org.springframework:spring-webmvc to a version that resolves this vulnerability.

    Fixed in 6.2.17
  4. Upgrade

    Upgrade maven/org.springframework:spring-webmvc to a version that resolves this vulnerability.

    Fixed in 7.0.6

Event History

Mar 19, 2026
CVE Published
via MITRE·11:37 PM
Data Sourced
via MITRE·11:37 PM
DescriptionSeverity
Mar 20, 2026
Data Sourced
via NVD·12:16 AM
DescriptionSeverityWeakness
Advisory Published
via GitHub·12:31 AM
Data Sourced
via GitHub·12:31 AM
DescriptionSeverityWeaknessAffected Software
Jul 7, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-22735?

CVE-2026-22735 has been classified with a high severity rating due to its potential to cause stream corruption in applications.

2

How do I fix CVE-2026-22735?

To remediate CVE-2026-22735, you should upgrade your Spring Framework to the latest available version beyond the affected ranges.

3

Which versions are affected by CVE-2026-22735?

CVE-2026-22735 affects Spring Framework versions from 5.3.0 through 5.3.46, 6.1.0 through 6.1.25, 6.2.0 through 6.2.16, and 7.0.0 through 7.0.5.

4

What types of applications are impacted by CVE-2026-22735?

CVE-2026-22735 impacts Spring MVC and WebFlux applications that utilize Server-Sent Events.

5

What are the potential risks associated with CVE-2026-22735?

The potential risks of CVE-2026-22735 include data integrity issues and application instability due to stream corruption.

Company

Resources

Contact

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