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-2026-59313

Spring MVC applications using the functional web framework are vulnerable to stream corruption in the ServerResponse.sse process. An attacker who can control the streamed data can inject malformed data into Server-Sent Events, corrupting the stream for other users. Exploitation requires the appli...

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...

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...

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...

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...

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...

CVE-2026-52736 ZEBRA: Block suppression via NU5 same-header body poisoning of sent-hash cache

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, a remote unauthenticated P2P peer can stall a Zebra node by racing an invalid block body against the valid canonical body for the same block header hash. ZIP-244 permits the attacker to mutate coinbase scriptSig authentication data...

CVE-2026-59881

A flaw was found in AIOHTTP. The WebSocket client in AIOHTTP processes compressed data frames even when the compression mechanism, known as permessage-deflate, has not been properly negotiated. A malicious server can exploit this by sending specially crafted compressed frames. This can lead to...

CVE-2026-72139

In the Linux kernel, the following vulnerability has been resolved: tcp: defer md5siginfo kfree past RCU grace period in tcpconnect The md5+ao reconciliation in tcpconnect net/ipv4/tcpoutput.c has two symmetric branches: if needsmd5 tcpaodestroysocksk, false; else if needsao tcpclearmd5listsk;...

CVE-2026-72157 net: thunderbolt: Fix frags[] overflow by bounding frame_count

In the Linux kernel, the following vulnerability has been resolved: net: thunderbolt: Fix frags overflow by bounding framecount tbnetpoll assembles a multi-frame ThunderboltIP packet into one skb. The first frame goes into the skb linear area and every further frame is added as a page fragment...

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...

CVE-2026-73405

CVE-2026-73405 describes an authorization bypass in Vulnerability-Lookup where the Pub/Sub SSE interface allowed unconfirmed/inactive accounts to subscribe to /pubsub/subscribe/ due to token_required only validating the API key, not is_active/is_confirmed. This created a boundary mismatch with th...