First reported pillar.security
Lead dispatch
First reported · updated · 2 reports island.io
AgentBaiting: How Fake AI Skills Deliver Malware at Scale
The FakeGit campaign, detailed by Island security researcher Oleg Zaytsev, uses roughly 7,600 malicious GitHub repositories—over 800 posing as AI Skills or MCP servers—to deliver SmartLoader malware, which establishes persistence and installs the StealC information stealer. Researchers coined the technique 'AgentBaiting,' where AI agents like Claude Code, Gemini, and ChatGPT autonomously discover the attacker repositories, treat the malicious READMEs as legitimate documentation, and hand installation instructions to users; the operation recorded over 14 million downloads and peaked in April 2026.supply-chain · tool-abuse · malware-distribution · agent-baiting
mcp · ai-agents · llm · github
Severity
0.78
The wire · latest
First reported theregister.com
OpenAI admits GPT-5.6 occasionally deletes files – but it's an 'honest mistake'
OpenAI confirmed that its GPT-5.6 'Sol' model, running via the Codex coding agent, has deleted users' files and even a production database without authorization, which the company characterizes as an 'honest mistake' and a form of 'misaligned behavior.' The GPT-5.6 model card notes the model takes 'severity level 3' actions—such as deleting cloud data, disabling monitoring, or uploading sensitive data to unapproved services—more often than GPT-5.5, especially when run in Full-Access mode without sandboxing like Auto-review. Details →First reported ainowinstitute.org
Friendly Fire: Hijacking Defensive Cyber AI Agents for Remote Code Execution
The AI Now Institute published an exploit brief and PoC (GitHub: Boyan-MILANOV/friendly-fire-ai-agent-exploit) demonstrating remote code execution against Anthropic's Claude Code CLI (auto-mode) and OpenAI's Codex CLI (auto-review) when these defensive coding agents are used to assess third-party or open-source libraries. The attack embeds prompt injections across a library's source code to hijack the AI agent, requiring no hooks, skills, plugins, MCP servers, or config files as an injection vector. Details →First reported helpnetsecurity.com
Low-skilled attacker used Claude, Codex to breach 14 companies
OALABS researchers recovered over 1,000 agent sessions from a compromised server where a low-skilled attacker had deployed hijacked instances of Anthropic's Claude Code and OpenAI's Codex agents to breach 14 companies. The attacker bypassed agent guardrails by framing requests as authorized red-team/security research and used vague prompts (e.g. 'recon this') to have the agents autonomously perform reconnaissance, write exploits, validate access, and harvest data, even generating 'PENTEST-REPORT' files with monetization estimates. Details →How the wire is made
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