CVE-2026-40986
Low
No strong exploitation signal.
CVSS base
4.8
MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
EPSS — probability of exploitation (30 days)
0.2%
11.1th percentile
CISA KEV
Not listed
Weakness / dates
CWE-79
Published 2026-06-11 · modified 2026-09-04
CVSS breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
| Attack Vector | N | Network |
| Attack Complexity | H | High |
| Privileges Required | L | Low |
| User Interaction | R | Required |
| Scope | U | Unchanged |
| Confidentiality | N | None |
| Integrity | H | High |
| Availability | N | None |
Timeline
- 2026-06-11 — Published (NVD)
- 2026-09-04 — Last modified (NVD)
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.