PT-2026-48614 · Spring · Spring Web Flow

Published 2026-06-11 · Updated 2026-06-11 · CVE-2026-40986

NVD

CVSS v3.1

4.8

Medium

Base vector

AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N

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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-40986

Affected Products

Spring Web Flow

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-40986 · Security Note
• https://spring.io/security/cve-2026-40986 · Note