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CVE-2025-9959
Good to know:
Date: September 3, 2025
Incomplete validation of dunder attributes allows an attacker to escape from the Local Python execution environment sandbox, enforced by smolagents. The attack requires a Prompt Injection in order to trick the agent to create malicious code.
Severity Score
Severity Score
Weakness Type (CWE)
Improper Control of Generation of Code ('Code Injection')
CWE-94Top Fix
Upgrade Version
Upgrade to version smolagents - 1.21.0;https://github.com/huggingface/smolagents.git - v1.21.0
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | REQUIRED |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | LOW |
| Integrity (I): | HIGH |
| Availability (A): | LOW |