CVE-2026-25905 Lack of isolation in mcp-run-python leads to MCP server takeover

The Python code being run by 'runPython' or 'runPythonAsync' is not isolated from the rest of the JS code, allowing any Python code to use the Pyodide APIs to modify the JS environment. This may result in an attacker hijacking the MCP server - for malicious purposes including MCP tool shadowing...

CVE-2026-25586

SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, a sandbox escape is possible by shadowing hasOwnProperty on a sandbox object, which disables prototype whitelist enforcement in the property-access path. This permits direct access to proto and other blocked prototype properties,...

CVE-2026-25586

SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, a sandbox escape is possible by shadowing hasOwnProperty on a sandbox object, which disables prototype whitelist enforcement in the property-access path. This permits direct access to proto and other blocked prototype properties,...

EUVD-2026-5592

SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, a sandbox escape is possible by shadowing hasOwnProperty on a sandbox object, which disables prototype whitelist enforcement in the property-access path. This permits direct access to proto and other blocked prototype properties,...

CVE-2026-25586 SandboxJS has a Sandbox Escape via Prototype Whitelist Bypass and Host Prototype Pollution

SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, a sandbox escape is possible by shadowing hasOwnProperty on a sandbox object, which disables prototype whitelist enforcement in the property-access path. This permits direct access to proto and other blocked prototype properties,...

CVE-2026-25586

SandboxJS (JavaScript sandboxing library) is affected by a sandbox-escape vulnerability prior to version 0.8.29. The flaw allows shadowing hasOwnProperty on a sandbox object, disabling prototype whitelist enforcement in the property-access path. This enables direct access to proto and other block...

CVE-2026-25586 SandboxJS has a Sandbox Escape via Prototype Whitelist Bypass and Host Prototype Pollution

SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, a sandbox escape is possible by shadowing hasOwnProperty on a sandbox object, which disables prototype whitelist enforcement in the property-access path. This permits direct access to proto and other blocked prototype properties,...

CVE-2026-25586 SandboxJS has a Sandbox Escape via Prototype Whitelist Bypass and Host Prototype Pollution

SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, a sandbox escape is possible by shadowing hasOwnProperty on a sandbox object, which disables prototype whitelist enforcement in the property-access path. This permits direct access to proto and other blocked prototype properties,...

GHSA-JJPW-65FV-8G48 @nyariv/sandboxjs has Sandbox Escape via Prototype Whitelist Bypass and Host Prototype Pollution

Summary A sandbox escape is possible by shadowing hasOwnProperty on a sandbox object, which disables prototype whitelist enforcement in the property-access path. This permits direct access to proto and other blocked prototype properties, enabling host Object.prototype pollution and persistent...

@nyariv/sandboxjs has Sandbox Escape via Prototype Whitelist Bypass and Host Prototype Pollution

Summary A sandbox escape is possible by shadowing hasOwnProperty on a sandbox object, which disables prototype whitelist enforcement in the property-access path. This permits direct access to proto and other blocked prototype properties, enabling host Object.prototype pollution and persistent...

PT-2026-6652

SandboxJS and Affected Versions SandboxJS versions prior to 0.8.29 Description SandboxJS, a JavaScript sandboxing library, is susceptible to a sandbox escape issue. This occurs because of the ability to shadow the hasOwnProperty method on a sandbox object, which disables prototype whitelist...

openSUSE 16 Security Update : cpp-httplib (openSUSE-SU-2026:20056-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20056-1 advisory. - CVE-2025-66570: IP spoofing, log poisoning, and authorization bypass via header shadowing due to acceptance and parsing of client-controlled...

Security update for cpp-httplib (critical)

openSUSE security update: security update for cpp-httplib ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:20056-1 Rating: critical References: bsc1254734 bsc1254735 Cross-References: CVE-2025-66570 CVE-2025-66577 CVSS scores: CVE-2025-66570 SUSE : 1...

SUSE-SU-2026:20090-1 Security update for cpp-httplib

This update for cpp-httplib fixes the following issues: - CVE-2025-66570: IP spoofing, log poisoning, and authorization bypass via header shadowing due to acceptance and parsing of client-controlled injected HTTP headers in incoming requests bsc1254734. - CVE-2025-66577: access and error log...

OESA-2025-2858 cpp-httplib security update

A C++11 single-file header-only cross platform HTTP/HTTPS library. It's extremely easy to setup. Just include httplib.h file in your code! Security Fixes: cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability allows attacker-controlled...

Securing the Model Context Protocol: Defending LLMs against Tool Poisoning and Adversarial Attacks

The Model Context Protocol MCP enables Large Language Models to integrate external tools through structured descriptors, increasing autonomy in decision-making, task execution, and multi-agent workflows. However, this autonomy creates a largely overlooked security gap. Existing defenses focus on...

CVE-2025-66570

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability allows attacker-controlled HTTP headers to influence server-visible metadata, logging, and authorization decisions. An attacker can inject headers named REMOTEADDR, REMOTEPORT,...

UBUNTU-CVE-2025-66570

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability allows attacker-controlled HTTP headers to influence server-visible metadata, logging, and authorization decisions. An attacker can inject headers named REMOTEADDR, REMOTEPORT,...

EUVD-2025-201455

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability allows attacker-controlled HTTP headers to influence server-visible metadata, logging, and authorization decisions. An attacker can inject headers named REMOTEADDR, REMOTEPORT,...

CVE-2025-66570 cpp-httplib Untrusted HTTP Header Handling: Internal Header Shadowing (REMOTE*/LOCAL*)

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability allows attacker-controlled HTTP headers to influence server-visible metadata, logging, and authorization decisions. An attacker can inject headers named REMOTEADDR, REMOTEPORT,...