EUVD-2026-18889

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable Authorization: Local ... token. That...

CVE-2026-34990 OpenPrinting CUPS: Local print admin token disclosure using temporary printers

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable Authorization: Local ... token. That...

CVE-2026-34990 OpenPrinting CUPS: Local print admin token disclosure using temporary printers

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable Authorization: Local ... token. That...

CVE-2026-34990 OpenPrinting CUPS: Local print admin token disclosure using temporary printers

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable Authorization: Local ... token. That...

CVE-2026-34990

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable Authorization: Local ... token. That...

CVE-2026-34990

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable Authorization: Local ... token. That...

CVE-2026-28798

ZimaOS is a fork of CasaOS, an operating system for Zima devices and x86-64 systems with UEFI. Prior to version 1.5.3, a proxy endpoint /v1/sys/proxy exposed by ZimaOS's web interface can be abused via an externally reachable domain using a Cloudflare Tunnel to make requests to internal localhost...

CVE-2026-28798

ZimaOS (fork of CasaOS for Zima devices and x86-64 with UEFI) before version 1.5.3 exposes a proxy endpoint at /v1/sys/proxy in its web interface. When the product is reachable from the Internet via a Cloudflare Tunnel , an externally reachable domain can abuse this endpoint to make requests to i...

CVE-2026-28798

ZimaOS is a fork of CasaOS, an operating system for Zima devices and x86-64 systems with UEFI. Prior to version 1.5.3, a proxy endpoint /v1/sys/proxy exposed by ZimaOS's web interface can be abused via an externally reachable domain using a Cloudflare Tunnel to make requests to internal localhost...

CVE-2026-28798 Arbitrary internal service access via /v1/sys/proxy when Cloudflare Tunnel is enabled on ZimaOS

ZimaOS is a fork of CasaOS, an operating system for Zima devices and x86-64 systems with UEFI. Prior to version 1.5.3, a proxy endpoint /v1/sys/proxy exposed by ZimaOS's web interface can be abused via an externally reachable domain using a Cloudflare Tunnel to make requests to internal localhost...

CVE-2026-28798: Server-Side Request Forgery (SSRF)

ZimaOS is a fork of CasaOS, an operating system for Zima devices and x86-64 systems with UEFI. Prior to version 1.5.3, a proxy endpoint /v1/sys/proxy exposed by ZimaOS's web interface can be abused via an externally reachable domain using a Cloudflare Tunnel to make requests to internal localhost...

CVE-2026-34742

A flaw was found in the Model Context Protocol MCP Go SDK. When an HTTP-based MCP server is run on localhost without authentication, a malicious website can exploit a DNS rebinding vulnerability. This allows the attacker to bypass same-origin policy restrictions and send requests to the local MCP...

CVE-2026-34742

The Go MCP SDK used Go's standard encoding/json. Prior to version 1.4.0, the Model Context Protocol MCP Go SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication with StreamableHTTPHandler or...

CVE-2026-34742 Model Context Protocol Go SDK: DNS Rebinding Protection Disabled by Default for Servers Running on Localhost

The Go MCP SDK used Go's standard encoding/json. Prior to version 1.4.0, the Model Context Protocol MCP Go SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication with StreamableHTTPHandler or...

CVE-2026-34742

The Go MCP SDK used Go's standard encoding/json. Prior to version 1.4.0, the Model Context Protocol MCP Go SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication with StreamableHTTPHandler or...

CVE-2026-34742 Model Context Protocol Go SDK: DNS Rebinding Protection Disabled by Default for Servers Running on Localhost

The Go MCP SDK used Go's standard encoding/json. Prior to version 1.4.0, the Model Context Protocol MCP Go SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication with StreamableHTTPHandler or...

CVE-2026-34742

The CVE-2026-34742 entry concerns the Model Context Protocol (MCP) Go SDK. Prior to version 1.4.0, an HTTP-based MCP server running on localhost without authentication did not enable DNS rebinding protection by default, allowing a malicious website to bypass same-origin policy and send requests t...

CVE-2026-34742 Model Context Protocol Go SDK: DNS Rebinding Protection Disabled by Default for Servers Running on Localhost

The Go MCP SDK used Go's standard encoding/json. Prior to version 1.4.0, the Model Context Protocol MCP Go SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication with StreamableHTTPHandler or...

CVE-2026-34526

SillyTavern is a locally installed user interface that allows users to interact with text generation large language models, image generation engines, and text-to-speech voice models. Prior to version 1.17.0, in src/endpoints/search.js, the hostname is checked against /^\d+.\d+.\d+.\d+$/. This...

CVE-2026-34526

Summary of CVE-2026-34526 (SillyTavern) : An incomplete IP validation in the /api/search/visit flow enables SSRF against internal hosts in versions prior to 1.17.0. The root cause is a hostname check in src/endpoints/search.js that uses the regex /^?\d+.\d+.\d+.\d+$/ to match only literal dotted-...