PT-2026-57500

Summary MCP SSE redirects could forward Authorization headers. In affected versions, a lower-trust caller or configured input path could execute or persist actions beyond the caller's intended authorization. This advisory is scoped to the named feature and configuration. It does not change...

CVE-2026-58399: Improper Authentication

@acastellon/auth is an authentication control system for microservices. Versions prior to 2.3.0 appear to allow an unauthenticated authentication bypass in validateToken through spoofable auth-user and Host request headers. The validateToken middleware contains a service-to-service bypass for...

BIT-ENVOY-2026-48743 Envoy: HTTP/3 to HTTP/1 request smuggling via headers-only request with nonzero Content-Length

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, Envoy can translate a downstream HTTP/3 request that is complete at the transport layer HEADERS with FIN / headers-only close but still carries a nonzero...

CVE-2026-54673

electron-updater allows for automatic updates for Electron apps. Prior to 9.7.0, the HTTP redirect handler HttpExecutor.prepareRedirectUrlOptions only stripped a credential header whose key string matched exactly lowercase "authorization", exposing credentials. Other credential-bearing headers —...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value via the STOMP NIO codec process. An attacker can cause the broker to buffer unbounded header data, leading to exhaustion of the JVM heap by sending header bytes that never terminate over a STO...

CVE-2026-53916 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: Unbounded header buffer in STOMP NIO codec

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. An unauthenticated client that opens a STOMP NIO connection can send header bytes that never terminate which makes the broker buffer them without limit, exhausting the JVM hea...

CVE-2026-53916 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: Unbounded header buffer in STOMP NIO codec

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. An unauthenticated client that opens a STOMP NIO connection can send header bytes that never terminate which makes the broker buffer them without limit, exhausting the JVM hea...

SUSE CVE-2026-53091

In the Linux kernel, the following vulnerability has been resolved: net: pull headers in qdiscpktlensegsinit Most ndostartxmit methods expects headers of gso packets to be already in skb-head. net/core/tso.c users are particularly at risk, because tsobuildhdr does a memcpyhdr, skb-data, hdrlen;...

PT-2026-53844

Name of the Vulnerable Software and Affected Versions Apache ActiveMQ versions prior to 5.19.8 Apache ActiveMQ versions 6.0.0 through 6.2.6 Apache ActiveMQ All versions prior to 5.19.8 Apache ActiveMQ All versions 6.0.0 through 6.2.6 Apache ActiveMQ Stomp versions prior to 5.19.8 Apache ActiveMQ...

CVE-2026-56399: Server-Side Request Forgery (SSRF)

Open WebUI before 0.6.27 contains a server-side request forgery vulnerability in the /api/v1/retrieval/process/web endpoint that allows authenticated users to bypass SSRF protections. Attackers can manipulate URL parameters with location redirect headers to access internal services and potentiall...

openid-connect Plugin Spear Phishing

The vulnerability of the openid-connect plugin for the Apache APISIX cloud API gateway is related to insufficient verification of data authenticity when processing identification headers. Exploiting this vulnerability could allow attackers to perform spear-phishing attacks remotely...

PT-2026-54019

Name of the Vulnerable Software and Affected Versions electron-updater versions prior to 9.7.0 Description The HTTP redirect handler HttpExecutor.prepareRedirectUrlOptions only removes credential headers that exactly match the lowercase string "authorization". Consequently, other credential-beari...

Linux Distros Unpatched Vulnerability : CVE-2026-56789

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - RTKLIB through 2.4.3 contains a heap buffer overflow vulnerability in the readrnxobsb function in src/rinex.c that allows attackers to trigger memory corruption...

Cross-site Scripting (XSS)

Overview secureheaders is a library that manages application of security headers with many safe defaults. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the overridecontentsecuritypolicydirectives process. An attacker can inject arbitrary Content Security Policy...

CVE-2026-50269

A flaw was found in aiohttp, an asynchronous HTTP client/server framework. This vulnerability, known as CRLF Carriage Return Line Feed injection, allows an attacker to modify HTTP requests by injecting malicious input into multipart or payload headers. If an application processes user-controlled...

urllib3: urllib3: Information disclosure via cross-origin redirects forwarding sensitive headers

A flaw was found in urllib3, an HTTP client library for Python. When using the low-level API via ProxyManager.connectionfromurl.urlopen with assertsamehost=False, cross-origin redirects can still forward sensitive headers. This could allow a remote attacker to gain unauthorized access to sensitiv...

Security Bulletin: Multiple security vulnerabilities are addressed with IBM Cloud Pak for Business Automation iFixes for June 2026.

Summary In addition to many updates of operating system level packages, the following security vulnerabilities are addressed with IBM Cloud Pak for Business Automation released in June 2026. Vulnerability Details CVEID:CVE-2025-12635 DESCRIPTION: IBM WebSphere Application Server 8.5, 9.0 and IBM...

CVE-2026-54285

A flaw was found in the @opentelemetry/core component of the OpenTelemetry JavaScript Client. This vulnerability allows a remote attacker to trigger uncontrolled memory allocation by sending oversized baggage HTTP headers. The system's inability to enforce size limits during inbound baggage parsi...

SUSE-SU-2026:2675-1 Security update for tomcat

This update for tomcat fixes the following issues Update to Tomcat 9.0.118: - CVE-2026-41284: Unbounded read in WebDAV LOCK and PROPFIND handling bsc1265162. - CVE-2026-41293: HTTP/2 request headers not validated bsc1265163. - CVE-2026-42498: WebSocket authentication header exposure bsc1265165. -...

PT-2026-53429

Technical Description The OpenAPIProvider in FastMCP exposes internal APIs to MCP clients by parsing OpenAPI specifications. The RequestDirector class is responsible for constructing HTTP requests to the backend service. A critical vulnerability exists in the build url method. When an OpenAPI...