Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection') Affecting org.springframework.webflow:spring-webflow package, versions [,3.0.2)[4.0.0-RC1,4.0.1)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.23% (13th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection') vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-JAVA-ORGSPRINGFRAMEWORKWEBFLOW-17315634
  • published12 Jun 2026
  • disclosed11 Jun 2026
  • creditUnknown

Introduced: 11 Jun 2026

CVE-2026-40985  (opens in a new tab)
CWE-917  (opens in a new tab)

How to fix?

Upgrade org.springframework.webflow:spring-webflow to version 3.0.2, 4.0.1 or higher.

Overview

org.springframework.webflow:spring-webflow is a maven plugin for Spring Web Flow.

Affected versions of this package are vulnerable to Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection') via the WebFlowELExpressionParser function. An attacker can execute arbitrary Unified EL expressions by supplying crafted input during data binding.

Note:

This is only exploitable if the following conditions are met:

  • The application explicitly configures the WebFlowELExpressionParser or its base class "ELExpressionParser".

  • The useSpringBinding configuration property has not been set to true.

  • View states do not use the <binding> element on a view state to declare the properties to bind.

CVSS Base Scores

version 4.0
version 3.1