GitHub Advisoryadvisory · Maven
GHSA-hw5c-xm3c-v96w Spring Web Flow JS RemotingHandler renders non-HTML Response as HTML
MEDIUM
Official page ↗
- Aliases
- CVE-2026-40986
- Ecosystem
- Maven
- Packages
- org.springframework.webflow:spring-webflow
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
- Weaknesses
- CWE-79
- Reviewed
- 2026-08-18
Affected packages
• Maven org.springframework.webflow:spring-webflow: >= 4.0.0, < 4.0.1 → fixed in 4.0.1
• Maven org.springframework.webflow:spring-webflow: >= 3.0.0, < 3.0.2 → fixed in 3.0.2
• Maven org.springframework.webflow:spring-webflow: <= 2.5.1 (no fix yet)
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.
Related
Alias · CVE (1)
- CVE-2026-40986 Spring Web Flow's JavaScript RemotingHandler renders the body of an error response as HTML even when the response is not "text/html", which… vulnerability
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness