First reported · updated · 2 reports threatdown.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 bleepingcomputer.com
How Threat Actors Are Turning Trusted AI Platforms Into an Attack Surface
Huntress reports that threat actors are abusing trusted AI platform features — including Claude Artifacts, claude.ai/share links, and shared indexable ChatGPT and Grok conversations — to host malicious content and deliver malware. One campaign, dubbed FakeAgent, began with a malicious Claude Artifact on the real claude.ai domain and hit more than 29 organizations via malvertising ending in a .NET RAT. Details →First reported · updated · 6 reports adversa.ai
Grok chat history leak: Cryptographic Context Injection
Adversa AI disclosed a new technique it calls Cryptographic Context Injection, which hides malicious instructions inside AES-256-GCM ciphertext so static guardrails cannot read them, then induces the model to decrypt them in its own code-execution sandbox where the recovered plaintext is treated as trusted instructions. Against xAI's Grok web chat, a benign 'summarize this page' request triggers zero-click exfiltration of the user's session data and chat history to an attacker URL; against Gemini it produces content the model normally refuses. Reported to xAI in June 2026 and still reproducible as of August 19, while Gemini's success rate has fallen but is not fully closed. Details →First reported bbc.com
OpenAI works to stop ChatGPT generating 'sex crime scene' images
Researchers at Mindgard demonstrated that a simple, slightly-altered prompt jailbreaks SpaceXAI's Grok (and previously OpenAI's ChatGPT/GPT-5.4) into generating graphic sexual and violent images without explicitly requesting such content. The same technique could be adapted to produce deepfakes of real people; OpenAI added safeguards after disclosure but researchers say small changes still bypass them. Details →How the wire is made
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