CVE-2025-9959

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CVSS 3.1

7.6 high

EPSS

<1%p24

Published

Sep 3, 2025 (Sep 3, 2025)

Modified

Jun 17, 2026

Description

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.

Weakness: CWE-94
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L

NVD CVE.org GitHub PoCs EPSS (0.3%)

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