Improper Neutralization Affecting org.springframework:spring-webmvc package, versions [5.3.0,7.0.9)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published26 Aug 2026
- disclosed20 Aug 2026
- creditUnknown
Introduced: 20 Aug 2026
NewCVE-2026-59313 (opens in a new tab)How to fix?
Upgrade org.springframework:spring-webmvc to version 7.0.9 or higher.
Overview
org.springframework:spring-webmvc is a package that provides Model-View-Controller (MVC) architecture and ready components that can be used to develop flexible and loosely coupled web applications.
Affected versions of this package are vulnerable to Improper Neutralization in the ServerResponse.sse process. An attacker can corrupt the data stream sent to other users by injecting malicious or malformed data into the stream when the application uses plain text messages and the attacker controls the streamed data. This is only exploitable if the application uses Spring MVC's functional web framework, streams data using Server Sent Events (SSE), does not use a structured message format like JSON, and allows an attacker to control the streamed data.