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Public proof of conceptFix available

CVE-2025-5120

A public proof of concept exists; no exploitation attested.

  • Published2025-07-27
  • Fixed in1.17.0
  • WeaknessCWE-94

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A sandbox escape vulnerability was identified in huggingface/smolagents version 1.14.0, allowing attackers to bypass the restricted execution environment and achieve remote code execution (RCE). The vulnerability stems from the local_python_executor.py module, which inadequately restricts Python code execution despite employing static and dynamic checks. Attackers can exploit whitelisted modules and functions to execute arbitrary code, compromising the host system. This flaw undermines the core security boundary intended to isolate untrusted code, posing risks such as unauthorized code execution, data leakage, and potential integration-level compromise. The issue is resolved in version 1.17.0.

Timeline

dates in UTC
  1. 2025-07-2708:15CVE publishedNVD

Versions per branch

OSV · NVD
smolagents
BranchAffectedFixed in
1.17< 1.17.01.17.0
Huggingface smolagents
BranchAffectedFixed in
1.14= 1.14.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As @huntr_ai, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • huggingface/smolagents
    Affected
    • < 1.17.0fixed in 1.17.0custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-07-27

Fix

  1. Update smolagents to 1.17.0

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionpoc2025-07-28
  • NVDCVSS 3.110read 2026-10-23
  • CNACVSS 3.07.6known since 2026-10-23
  • CNAweakness (CWE)CWE-94known since 2026-10-23
  • FIRST EPSSEPSS score31.2 %read 2026-11-10
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryCRITICAL2025-07-28

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published
2025-07-27
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-6v92-r5mx-h5fx

Frequently asked questions

What is CVE-2025-5120?

A sandbox escape vulnerability was identified in huggingface/smolagents version 1.14.0, allowing attackers to bypass the restricted execution environment and achieve remote code execution (RCE). The vulnerability stems from the local_python_executor.py module, which inadequately restricts Python code execution despite employing static and dynamic checks. Attackers can exploit whitelisted modules and functions to execute arbitrary code, compromising the host system. This flaw undermines the core security boundary intended to isolate untrusted code, posing risks such as unauthorized code execution, data leakage, and potential integration-level compromise. The issue is resolved in version 1.17.0.

Is CVE-2025-5120 actively exploited?

A proof-of-concept exploit exists for CVE-2025-5120, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-5120?

CVE-2025-5120 has a CVSS v3 base score of 10 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

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