GHSA-M9G3-3G99-MHPX eventsource-encoder vulnerable to SSE event injection via unsanitized `event` and `id` fields

Summary eventsource-encoder does not sanitize the event or id fields of an EventSourceMessage before serializing them. An attacker who controls either field can inject arbitrary Server-Sent Events line terminators \n, \r, or \r\n and thereby forge additional SSE fields or entire messages on the...

PT-2026-39241

Name of the Vulnerable Software and Affected Versions eventsource-encoder versions prior to 1.0.2 Description The software fails to sanitize the event and id fields of an EventSourceMessage before serialization in the encodeMessage function. An attacker who controls these fields can inject...

GHSA-84HM-WFH8-C5PG sse-channel: SSE Injection via unsanitized event fields

Impact Implementations that allows user-provided values to be passed to event, retry or id fields would be susceptible to event spoofing, where an attacker could inject arbitrary messages into the stream. - Event Spoofing: Attacker can inject arbitrary SSE events into the stream - Client-side...

PT-2026-37313

Name of the Vulnerable Software and Affected Versions sse-channel versions prior to 4.0.1 Description Implementations that allow user-provided values to be passed to the event, retry, or id fields are susceptible to event spoofing. This allows an attacker to inject arbitrary Server-Sent Events SS...

Security Bulletin: Multiple Vulnerabilities in IBM CloudPak for AIOps

Summary Multiple vulnerabilities were addressed in IBM Cloud Pak for AIOps version 4.13.1 Vulnerability Details CVEID:CVE-2026-22737 DESCRIPTION: Use of Java scripting engine enabled e.g. JRuby, Jython template views in Spring MVC and Spring WebFlux applications can result in disclosure of conten...

Security Bulletin: Due to use of spring-web-6.2.16.jar, IBM Sterling Connect:Direct Web Services is affected by stream corruption issue when using Server-Sent Events (SSE).

Summary spring-web-6.2.16.jar is used by IBM Sterling Connect:Direct Web Services CVE-2026-22735. Vulnerability Details CVEID:CVE-2026-22735 DESCRIPTION: Spring MVC and WebFlux applications are vulnerable to stream corruption when using Server-Sent Events SSE. This issue affects Spring Foundation...

CVE-2026-40576

excel-mcp-server is a Model Context Protocol server for Excel file manipulation. A path traversal vulnerability exists in excel-mcp-server versions up to and including 0.1.7. When running in SSE or Streamable-HTTP transport mode the documented way to use this server remotely, an unauthenticated...

Injection

@nestjs/core is vulnerable to Injection. The vulnerability is due to unsanitized interpolation of user-controlled fields into Server-Sent Events output, which allows an attacker to inject arbitrary events, spoof event types, and manipulate the event stream...

GHSA-J98M-W3XP-9F56 excel-mcp-server has a Path Traversal issue

Summary A path traversal vulnerability exists in excel-mcp-server versions up to and including 0.1.7. When running in SSE or Streamable-HTTP transport mode the documented way to use this server remotely, an unauthenticated attacker on the network can read, write, and overwrite arbitrary files on...

PT-2026-33225

Name of the Vulnerable Software and Affected Versions excel-mcp-server versions prior to 0.1.8 Description A path traversal issue exists in excel-mcp-server when operating in SSE or Streamable-HTTP transport modes. An unauthenticated network attacker can read, write, and overwrite arbitrary files...

CVE-2026-39889

PraisonAI's A2U event stream server exposes all agent activity without authentication prior to version 4.5.115. The create_a2u_routes() function registers endpoints /a2u/info, /a2u/subscribe, /a2u/events/{stream_name}, /a2u/events/sub/{id}, and /a2u/health with no auth checks, enabling unauthenti...

EUVD-2026-20636

PraisonAI Has Unauthenticated SSE Event Stream that Exposes All Agent Activity in A2U Server...

PraisonAI Has Unauthenticated SSE Event Stream that Exposes All Agent Activity in A2U Server

The A2U Agent-to-User event stream server in PraisonAI exposes all agent activity without authentication. This is a separate component from the gateway server fixed in CVE-2026-34952. The createa2uroutes function registers the following endpoints with NO authentication checks: - GET /a2u/info —...

CVE-2026-35515

A flaw was found in Nest, a framework for building Node.js server-side applications. An attacker can exploit a vulnerability in the SseStream.transform function by injecting newline characters into message.type and message.id fields. This allows the attacker to inject arbitrary Server-Sent Events...

CVE-2026-35515

Nest is a framework for building scalable Node.js server-side applications. Prior to 11.1.18, SseStream.transform interpolates message.type and message.id directly into Server-Sent Events text protocol output without sanitizing newline characters \r, \n. Since the SSE protocol treats both \r and ...

CVE-2026-35515 @nestjs/core Improperly Neutralizes Special Elements in Output Used by a Downstream Component ('Injection')

Nest is a framework for building scalable Node.js server-side applications. Prior to 11.1.18, SseStream.transform interpolates message.type and message.id directly into Server-Sent Events text protocol output without sanitizing newline characters \r, \n. Since the SSE protocol treats both \r and ...

CVE-2026-35515

NestJS/core (@nestjs/core) contains a vulnerability in SseStream._transform() where un sanitized interpolation of upstream data into SSE output allows an attacker to inject arbitrary SSE events, spoof event types, and corrupt reconnection state. The issue arises from inserting message.type and me...

CVE-2026-35515 @nestjs/core Improperly Neutralizes Special Elements in Output Used by a Downstream Component ('Injection')

Nest is a framework for building scalable Node.js server-side applications. Prior to 11.1.18, SseStream.transform interpolates message.type and message.id directly into Server-Sent Events text protocol output without sanitizing newline characters \r, \n. Since the SSE protocol treats both \r and ...

CVE-2026-35515 @nestjs/core Improperly Neutralizes Special Elements in Output Used by a Downstream Component ('Injection')

Nest is a framework for building scalable Node.js server-side applications. Prior to 11.1.18, SseStream.transform interpolates message.type and message.id directly into Server-Sent Events text protocol output without sanitizing newline characters \r, \n. Since the SSE protocol treats both \r and ...

nest 注入漏洞

Nest is a Node.js framework developed by NestJS, aimed at building efficient, scalable, and enterprise-level server-side applications using TypeScript/JavaScript. Prior to version 11.1.18, Nest had an injection vulnerability. This vulnerability stemmed from the SseStream.transform function, which...