Medium [CVE-2026-40986] Spring Web Flow's JavaScript RemotingHandler renders the body of an error response as HTML even
This medium-severity VMware (Broadcom) advisory covers CVE-2026-40986.
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Summary
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.
- 4.0.0
- 3.0.0
- 3.0.1
- 2.5.0
- 2.5.1
NVD record · high-confidence parse· fetched 2 months ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
NVD record · high-confidence parse· fetched 2 months ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
NVD record · high-confidence parse· fetched 2 months ago·verify at source
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