First reported datadoghq.com
Research · latest
First reported · updated · 2 reports pillar.security
The Week of Sandbox Escapes
Pillar Security researchers (Eilon Cohen, Dan Lisichkin, Ariel Fogel) published 'The Week of Sandbox Escapes,' demonstrating seven ways to break out of the sandboxes in four AI coding agents — Cursor, OpenAI's Codex, Google's Gemini CLI and Antigravity — without attacking the sandbox directly. A prompt injection planted in a README, issue, dependency, or diff drives the sandboxed agent to write workspace files (e.g. a .claude hook config, a virtualenv interpreter, or Git fsmonitor metadata) that trusted tools running outside the sandbox later execute, achieving host command execution; one Cursor issue is tracked as CVE-2026-48124 and fixed in v3.0.0. Details →First reported · updated · 2 reports canopii.dev
State of MCP Security 2026 v2
Canopii's "State of MCP Security 2026" report scanned more than 11,000 published Model Context Protocol servers and found 830 graded D or F, 232 with confirmed dangerous code sinks (eval, shell injection, unsafe deserialization) that can turn prompt injection into host code execution, 184 versions that silently altered tool definitions after publication ("rug pulls"), 1,617 servers shipping dependencies with known vulnerabilities, 260 running install-time scripts, and 7 confirmed typosquats. Popular servers with 1,000+ GitHub stars were over 5x more likely to be high-risk. Details →How the wire is made
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