CVE-2026-4963

critical

A weakness has been identified in huggingface smolagents 1.25.0.dev0.

Vendor / product: Huggingface — smolagents

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

10.0

10.0 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Severity source: NVD CVSS v3.1 (nvd@nist.gov)

Timeline (UTC)

Published: 2026-03-27 17:16

Modified: 2026-10-26 21:10

NVD status: Analyzed

Last synced 2 days ago

Verified against the source API 2026-10-27 07:07 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

huggingface / smolagents 1.25.0

Weakness classification (CWE)

CWE-74 CWE-94

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://gist.github.com/YLChen-007/35b7d46e892266a0ed6dbe57802858be cna@vuldb.com
https://gist.github.com/YLChen-007/7146f45960f79bc1e2976fed526e0a9b cna@vuldb.com
https://vuldb.com/?ctiid.353840 cna@vuldb.com
https://vuldb.com/?id.353840 cna@vuldb.com
https://vuldb.com/?submit.777623 cna@vuldb.com
https://vuldb.com/?submit.777643 cna@vuldb.com
https://vuldb.com/?submit.777644 cna@vuldb.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 07:07 UTC · record ↗

Learn the basics

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