CVE-2026-4963

A weakness has been identified in huggingface smolagents 1.25.0.dev0. This affects the function evaluate_augassign/evaluate_call/evaluate_with of the file src/smolagents/local_python_executor.py of the component Incomplete Fix CVE-2025-9959. This manipulation causes code injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3 6.3 MEDIUM
CVSS v2.0 7.5 HIGH

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://gist.github.com/YLChen-007/35b7d46e892266a0ed6dbe57802858be	Exploit Third Party Advisory
https://gist.github.com/YLChen-007/7146f45960f79bc1e2976fed526e0a9b	Exploit Third Party Advisory
https://vuldb.com/?ctiid.353840	Permissions Required VDB Entry
https://vuldb.com/?id.353840	Third Party Advisory VDB Entry
https://vuldb.com/?submit.777623	Exploit Third Party Advisory VDB Entry
https://vuldb.com/?submit.777643	Exploit Third Party Advisory VDB Entry
https://vuldb.com/?submit.777644	Exploit Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:huggingface:smolagents:1.25.0:dev0:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-27 17:16

Updated : 2026-06-17 10:57

NVD link : CVE-2026-4963

Mitre link : CVE-2026-4963

CVE.ORG link : CVE-2026-4963

JSON object : View

Products Affected

huggingface

smolagents

CWE

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CWE-94

Improper Control of Generation of Code ('Code Injection')

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