First reported techxplore.com
Lead dispatch
First reported · updated · 3 reports embracethered.com
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
Severity
0.85
The wire · latest
First reported mallory.ai
Researchers Expose Prompt Injection and Cross-Origin Risks in AI Browsers
Researchers and vendors disclosed serious weaknesses in AI-enabled browsers, warning that agentic features undermine same-origin policy, tab isolation, and cross-origin content handling. In one chain against OpenAI's ChatGPT Atlas, Hacktron AI reported that exposed Chromium Mojo IPC interfaces reachable from allowlisted OpenAI origins were combined with a postMessage XSS on forums.openai.com and a login CSRF flaw to control browser functions, read live tab URLs, and steal OAuth codes enabling account takeover; OpenAI fixed it in Atlas 1.2025.288.15 and paid a $5,000 bounty. Brave separately detailed indirect prompt injection risks in Perplexity Comet. Details →First reported openai.com
Continuously hardening ChatGPT Atlas against prompt injection attacks
OpenAI describes how it hardens ChatGPT Atlas's browser agent-mode against prompt injection, using reinforcement-learning-powered automated red teaming to discover novel attack strategies internally before they appear in the wild. The post details a recent security update that shipped a newly adversarially trained model and strengthened safeguards after internal red teaming uncovered a new class of prompt-injection attacks, and outlines a rapid response loop for continuously finding and patching agent exploits. Details →How the wire is made
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