CVE-2026-59313 Server Sent Event stream corruption in Spring MVC functional web framework

Spring MVC applications using the functional web framework are vulnerable to stream corruption when using Server-Sent Events SSE. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49...

EUVD-2026-67193

Spring MVC applications using the functional web framework are vulnerable to stream corruption when using Server-Sent Events SSE. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49...

CVE-2026-47890

Spring MVC and WebFlux applications are vulnerable to stream corruption when using Server-Sent Events SSE with view fragments. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19...

CVE-2026-47890

Spring MVC and WebFlux applications are vulnerable to stream corruption when using Server-Sent Events SSE with view fragments. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19...

UBUNTU-CVE-2026-47890

Spring MVC and WebFlux applications are vulnerable to stream corruption when using Server-Sent Events SSE with view fragments. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19...

CVE-2026-47890 Spring Framework Server Sent Event stream corruption while rendering fragments

Spring MVC and WebFlux applications are vulnerable to stream corruption when using Server-Sent Events SSE with view fragments. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19...

CVE-2026-47890 Spring Framework Server Sent Event stream corruption while rendering fragments

Spring MVC and WebFlux applications are vulnerable to stream corruption when using Server-Sent Events SSE with view fragments. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19...

CVE-2026-47890

Spring MVC and WebFlux applications are vulnerable to stream corruption when using Server-Sent Events SSE with view fragments. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19...

CVE-2026-47890

Spring Framework versions 7.0.0–7.0.8 and 6.2.0–6.2.19 are affected by a stream corruption issue when Server-Sent Events (SSE) are used with view fragments in Spring MVC and WebFlux applications. The NVD-assigned CVSS 3.1 score is 9.8 (Critical) , while the vendor (Spring) classifies it as LOW se...

EUVD-2026-66858

Spring MVC and WebFlux applications are vulnerable to stream corruption when using Server-Sent Events SSE with view fragments. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19...

PT-2026-82408

Name of the Vulnerable Software and Affected Versions Spring Framework versions 6.2.0 through 6.2.19 Spring Framework versions 7.0.0 through 7.0.8 Description Spring MVC and WebFlux applications are susceptible to stream corruption. This issue occurs specifically when utilizing Server-Sent Events...

PT-2026-82717

Name of the Vulnerable Software and Affected Versions Spring Framework versions 7.0.0 through 7.0.8 Spring Framework versions 6.2.0 through 6.2.19 Spring Framework versions 6.1.0 through 6.1.28 Spring Framework versions 6.0.0 through 6.0.30 Spring Framework versions 5.3.0 through 5.3.49 Descripti...

CVE-2026-53965 MCP PHP SDK: Unbounded SSE buffer in HttpTransport enables client-side denial of service

The MCP PHP SDK Composer package mcp/sdk is the official Model Context Protocol SDK for PHP. In versions 0.5.0 through 0.7.0, the HTTP client transport reads a Server-Sent Events response stream incrementally and appends each chunk to an in-memory buffer with no upper bound. The buffer is only...

cve-2026-47890 - LOW - Spring Framework Server Sent Event stream corruption while rendering fragments

cve-2026-47890 - LOW - Spring Framework Server Sent Event stream corruption while rendering fragments...

Cross-site Scripting (XSS)

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 Cross-site Scripting XSS when sending vi...

Cross-site Scripting (XSS)

Overview org.springframework:spring-webflux is a Spring Framework module that contains support for reactive HTTP and WebSocket clients as well as for reactive server web applications including REST, HTML browser, and WebSocket style interactions. Affected versions of this package are vulnerable t...

GHSA-7M52-JW36-44R3 MCP PHP SDK: client HttpTransport SSE buffer (sseBuffer .= chunk) grows unbounded when server withholds the event delimiter

Summary The HTTP client transport in mcp/sdk reads a Server-Sent-Events SSE response stream incrementally and appends each 4 KiB chunk to an in-memory buffer $this-sseBuffer .= $chunk; with no upper bound. The buffer is only ever flushed when an SSE event delimiter "\n\n" appears. A remote MCP...

MCP PHP SDK: client HttpTransport SSE buffer (sseBuffer .= chunk) grows unbounded when server withholds the event delimiter

Summary The HTTP client transport in mcp/sdk reads a Server-Sent-Events SSE response stream incrementally and appends each 4 KiB chunk to an in-memory buffer $this-sseBuffer .= $chunk; with no upper bound. The buffer is only ever flushed when an SSE event delimiter "\n\n" appears. A remote MCP...

Client HttpTransport SSE buffer grows unbounded when server withholds the event delimiter

Summary The HTTP client transport in mcp/sdk reads a Server-Sent-Events SSE response stream incrementally and appends each 4 KiB chunk to an in-memory buffer $this-sseBuffer .= $chunk; with no upper bound. The buffer is only ever flushed when an SSE event delimiter "\n\n" appears. A remote MCP...

EUVD-2026-57223

An authorization bypass vulnerability in Vulnerability-Lookup allowed inactive or unconfirmed accounts to subscribe to Server-Sent Events SSE streams through the /pubsub/subscribe/ endpoint. The tokenrequired decorator used by the Pub/Sub interface authenticated requests solely by matching the...