SecuriTricks - CVE-2026-40986

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.

Product(s) Impacted

Vendor	Product	Versions
Spring	Spring Web Flow	4.0.0, 3.0.0-3.0.1, 2.5.0-2.5.1

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	spring	spring_web_flow	4.0.0	/	/	/	/	/	/	/
a	spring	spring_web_flow	3.0.0-3.0.1	/	/	/	/	/	/	/
a	spring	spring_web_flow	2.5.0-2.5.1	/	/	/	/	/	/	/

References

https://spring.io/security/cve-2026-40986

CVSS Score

4.8 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: HIGH
Privileges Required: LOW
Scope: UNCHANGED
Confidentiality Impact: NONE
Integrity Impact: HIGH
Availability Impact: NONE

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N

View Vector String

Timeline

Published: June 11, 2026, 7:16 a.m.
Last Modified: June 11, 2026, 7:16 a.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-40986