UBUNTU-CVE-2026-52845

Caddy is an extensible server platform that uses TLS by default. Prior to 2.11.4, forwardauth copyheaders deletes the exact client-supplied identity header before copying the trusted value from the auth gateway. But when the request later goes through phpfastcgi, Caddy normalizes HTTP headers int...

UBUNTU-CVE-2026-52846

Caddy is an extensible server platform that uses TLS by default. Prior to 2.11.4, Caddy’s stripHTML template function cannot reliably remove all HTML tags from input strings. Certain malformed HTML, such as img src=x onerror=alert, can bypass the tag-stripping logic, potentially leaving dangerous...

Security Bulletin: Unauthenticated Cross-User MCP Resource Access and Tool Execution via Streamable Transport Authorization Bypass

Summary An improper authorization vulnerability in Streamable MCP transport endpoint /api/v1/mcp/project/projectid/streamable allows unauthenticated attackers to bypass project ownership controls and execute Model Context Protocol MCP operations against OAuth-authenticated projects owned by other...

UBUNTU-CVE-2026-45692

Caddy is an extensible server platform that uses TLS by default. From 2.4.0 until 2.11.3, the authorization layer and the /config traversal layer do not agree on what object the path refers to. In this case, a path authorized for one config object is accepted, but then resolves to a different...

CVE-2026-44726 Deno: TLS retry copies stale upgrade hook, risking plaintext traffic

Deno is a JavaScript, TypeScript, and WebAssembly runtime. From 2.0.0 until 2.7.8, a flaw in Deno's Node.js tls compatibility layer could cause a TLS client to transmit application data in plaintext after a connection retry. When autoSelectFamily was enabled and the first address-family attempt...

CVE-2026-44726

Summary: CVE-2026-44726 affects Deno up to 2.7.7, where a flaw in Deno’s Node.js TLS compatibility layer can cause plaintext data to be sent after a connection retry when autoSelectFamily is enabled. The root cause is that the socket reinitialization path reuses a stale TLS upgrade hook tied to t...

CVE-2026-44726

Deno is a JavaScript, TypeScript, and WebAssembly runtime. From 2.0.0 until 2.7.8, a flaw in Deno's Node.js tls compatibility layer could cause a TLS client to transmit application data in plaintext after a connection retry. When autoSelectFamily was enabled and the first address-family attempt...

CVE-2026-44726 Deno: TLS retry copies stale upgrade hook, risking plaintext traffic

Deno is a JavaScript, TypeScript, and WebAssembly runtime. From 2.0.0 until 2.7.8, a flaw in Deno's Node.js tls compatibility layer could cause a TLS client to transmit application data in plaintext after a connection retry. When autoSelectFamily was enabled and the first address-family attempt...

CVE-2026-44726 Deno: TLS retry copies stale upgrade hook, risking plaintext traffic

Deno is a JavaScript, TypeScript, and WebAssembly runtime. From 2.0.0 until 2.7.8, a flaw in Deno's Node.js tls compatibility layer could cause a TLS client to transmit application data in plaintext after a connection retry. When autoSelectFamily was enabled and the first address-family attempt...

CVE-2026-54309

n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP transport mode, the MCP endpoint accepts session initialization and tool invocation requests without any authentication. Any network-reachable client, or any website visited by the...

CVE-2026-54309 n8n: n8n MCP Browser HTTP Transport Exposes Unauthenticated Browser-Control Sessions

n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP transport mode, the MCP endpoint accepts session initialization and tool invocation requests without any authentication. Any network-reachable client, or any website visited by the...

CVE-2026-54309

CVE-2026-54309 affects n8n when using the MCP Browser extension in HTTP transport mode. The MCP endpoint accepts unauthenticated session initialization and tool invocation requests, enabling network-reachable clients (or websites visited by the user) to establish an MCP session and invoke browser...

CVE-2026-54309

n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP transport mode, the MCP endpoint accepts session initialization and tool invocation requests without any authentication. Any network-reachable client, or any website visited by the...

Astra Linux – Vulnerability in exim4

In versions of Exim prior to 4.99.3, and under certain GnuTLS configurations, there is a remotely reachable use-after-free in the BDAT body parsing path. This issue is triggered when a client sends a TLS closenotify message during a CHUNKING transfer, followed by a final cleartext byte on the sam...

2 Scattered Spider-Linked Hackers Plead Guilty Over £39M TfL Cyberattack

Two teenagers face sentencing after admitting to a massive Scattered Spider cyberattack that hit Transport for London TfL and US healthcare networks...

crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages

A flaw was found in the crypto/tls package within the Go golang standard library, specifically affecting TLS 1.3 connections. A remote attacker can exploit this vulnerability by sending multiple key update messages in a single record after the handshake. This can cause the connection to deadlock,...

Oracle Linux 9 : unbound (ELSA-2026-18931)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-18931 advisory. 1.24.2-2 - Switch TLS configuration to follow TLS sockets by crypto-policy again RHEL-147860 - Change the default of tls-use-system-policy-versions at...

Important: skopeo security update

The skopeo command lets you inspect images from container image registries, get images and image layers, and use signatures to create and verify files. Security Fixes: crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation CVE-2026-32281 crypto/tls:...

crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages

A flaw was found in the crypto/tls package within the Go golang standard library, specifically affecting TLS 1.3 connections. A remote attacker can exploit this vulnerability by sending multiple key update messages in a single record after the handshake. This can cause the connection to deadlock,...

crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages

A flaw was found in the crypto/tls package within the Go golang standard library, specifically affecting TLS 1.3 connections. A remote attacker can exploit this vulnerability by sending multiple key update messages in a single record after the handshake. This can cause the connection to deadlock,...