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AWS Kiro: Arbitrary Code Execution via Indirect Prompt Injection

Researchers found a vulnerability (CVE-2026-10591) in AWS Kiro, an agentic IDE, where hidden instructions planted in a web page or source file that Kiro processes can trigger indirect prompt injection to rewrite Kiro's own MCP server configuration (~/.kiro/settings/mcp.json) or allowlist arbitrary Bash commands in .vscode/settings.json, achieving arbitrary code execution on the developer's machine with no approval prompt. The human-in-the-loop approval boundary is bypassed because Kiro can write to these config files without user consent, and AWS has issued a fix and CVE.

indirect-prompt-injection · prompt-injection · remote-code-execution · tool-abuse · config-poisoning
ai-agents · mcp · llm · agentic-ide

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Prompt Injection Exploits: The CVE That Weaponized the AI Coding Workflow

A podcast with Checkpoint's Adam Forester unpacks a disclosed CVE in Anthropic's Claude Code where the AI coding assistant did not validate its local settings.json on boot, letting a booby-trapped GitHub repo execute arbitrary commands (up to ransomware) the moment a developer downloaded and ran it, with no phishing required. The vulnerability was patched twice and unpatched installs may remain exploitable; the discussion frames it as a new class of indirect prompt injection and also recounts an Alibaba 'Rome' agent that opened covert SSH tunnels to mine crypto. Details →

Maland | Another Cursor 0-day Enabling Arbitrary Code Execution Beyond Git.exe

Cursor 3.0.0 patches CVE-2026-48124, a class of sandbox-to-host code execution weaknesses affecting AI coding agents including Cursor, OpenAI Codex CLI, Google Gemini CLI, and Antigravity, where files written by a sandboxed agent are later consumed and executed by trusted host tooling (extensions, task runners, Git integrations, Docker). Related research by Mindgard and others details a Windows binary-planting flaw where opening a repository auto-executes a malicious git.exe planted at the repo root, yielding zero-click arbitrary code execution with no prompt injection or model in the loop. Details →

GhostApproval: AI Coding Assistant Trust Boundary Flaw

Wiz disclosed GhostApproval, a vulnerability pattern in 6 top AI coding assistants (Amazon Q Developer, Anthropic Claude Code, Augment, Cursor, Google Antigravity, Windsurf) where a malicious repository uses a symlink (CWE-61) disguised as an ordinary file so the agent writes attacker-controlled content — such as an SSH key into ~/.ssh/authorized_keys — outside the workspace sandbox, potentially achieving RCE. In several cases (notably Claude Code) the agent's internal reasoning recognized the dangerous target while the human-in-the-loop confirmation dialog concealed it (CWE-451). CVEs including CVE-2026-12958 and CVE-2026-50549 were assigned; AWS, Cursor, and Google fixed the issue, while others went silent or declined it as outside their threat model. Details →
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