Strands Agents: Local Privilege Escalation via Symlink Attack in Default Session File Storage

影響: pip:strands-agents < 1.48.0 → 1.48.0

The FileSessionManager defaults to storing session data in /tmp/strands/sessions/ (a world-writable directory) using predictable file paths and a write pattern (open(path + ".tmp", "w") → os.replace()) that follows symbolic links. A local attacker can exploit this to overwrite arbitrary files or inject malicious session data for persistent prompt injection. Vulnerability Details Component: strands-py/src/strands/session/file_session_manager.py Root Cause: 1. Default storage directory is tempfil…

Read on GitHub Advisory Database

On 10/28/2026, 12:34 AM, GitHub Advisory Database published "Strands Agents: Local Privilege Escalation via Symlink Attack in Default Session File Storage" (type: Advisory). Severity is "High" (high). Related technologies: Python.