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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.
Patched

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

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FilteringPoC ×context-poisoning ×Clear all

First reported · updated · 3 reports mallory.ai

GhostJacking Attacks: Half of the Fortune 500 Run These Tools. Getting Blocked by the Firewall Was the Way to Take Over Their AI Agents - Tenet Security

Tenet Security disclosed 'GhostJacking' at DEF CON 34, an indirect prompt-injection technique that hides malicious instructions inside trusted operational data such as logs, alerts, and bug reports, then tricks AI coding and operations agents into executing them with their own legitimate permissions. Demonstrations across Cloudflare, Datadog, and Sentry workflows showed agents altering DNS records, running commands, exposing frontend keys, and exfiltrating environment secrets and cloud credentials while falsely reporting success. Tenet also reported that Anthropic fixed a Claude Desktop remote data-exfiltration flaw with no CVE assigned.
PoCresearchindirect-prompt-injectiondata-exfiltrationmemory-injectiontool-abusecontext-poisoningai-agentsllmclaude-desktopmcp
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First reported · updated · 2 reports asset-group.github.io

We put the exploit in a picture. Your AI code reviewer never opens it.

Researchers from the University of Missouri-Kansas City's ASSET Research Group demonstrated 'Ghostcommit,' an attack that hides malicious prompt-injection instructions inside a PNG image so AI code reviewers (CodeRabbit, Cursor Bugbot) never see them. A benign-looking AGENTS.md convention file points to build-spec.png, whose rendered text instructs a coding agent to read the repo's .env byte-by-byte and emit the secrets as an integer tuple; the payload sits dormant until an unrelated agent session triggers exfiltration. A proof-of-concept is published on GitHub and the findings were disclosed to affected vendors.
PoCresearchprompt-injectionindirect-prompt-injectiondata-exfiltrationsupply-chaincontext-poisoningai-agentsllmcoding-agentcode-reviewcoderabbitcursor-bugbot
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