Description
Spring Web Flow's JavaScript RemotingHandler renders the body of an error response as HTML even when the response is not "text/html", which can result in a scripting attack in the user's browser if the error response from the server contains error details with input reflected from an attacker. Affected versions: Spring Web Flow 4.0.0; 3.0.0 through 3.0.1; 2.5.0 through 2.5.1.
Problem types
CWE-79: Improper Neutralization of Input During Web Page Generation (Cross-site Scripting)
Product status
4.0.0 (custom) before 4.0.1
3.0.0 (custom) before 3.0.2
2.5.0 (custom) before 2.5.2
References
spring.io/security/cve-2026-40986