{"uuid": "21c7e8dd-2eee-4793-b39c-423ebcbab187", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-39987", "type": "seen", "source": "https://t.me/thehackernews/9113", "content": "\u26a0\ufe0f Attackers used an LLM agent for post-exploitation after breaching a public Marimo notebook via CVE-2026-39987, a pre-auth RCE flaw affecting versions \u22640.20.4.\n\nThe intrusion stole cloud credentials, retrieved an SSH key from AWS Secrets Manager, and exfiltrated a PostgreSQL database via eight SSH sessions in under two minutes.\n\nFull report: https://thehackernews.com/2026/05/attackers-use-llm-agent-for-post.html", "creation_timestamp": "2026-05-29T14:53:34.000000Z"}