# CVE-2026-124588: huggingface finetrainers Model Index model.py resolve_component_cls code injection

Status: published. Published: 2026-11-09. Updated: 2026-11-09.

A security flaw has been discovered in huggingface finetrainers 0.1.0/0.2.0. The impacted element is the function resolve_component_cls of the file finetrainers/utils/model.py of the component Model Index Handler. Performing a manipulation of the argument Library results in code injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- huggingface / finetrainers: 0.1.0 (affected); 0.2.0 (affected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 5.3 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P; source: CNA: VulDB

- CVSS 3.1: 6.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C; source: CNA: VulDB

- CVSS 3.0: 6.3 (medium); CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C; source: CNA: VulDB

- CVSS 2.0: 7.5 (high); AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C; source: CNA: VulDB

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-94, CWE-74

## Exploit evidence

- exploit: https://github.com/user-attachments/files/33587108/poc.zip (CNA: VulDB)

## References

- https://vuldb.com/vuln/433012 (CNA: VulDB; vdb-entry, technical-description)

- https://vuldb.com/vuln/433012/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-124588 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/1040375 (CNA: VulDB; third-party-advisory)

- https://github.com/huggingface/finetrainers/issues/435 (CNA: VulDB; issue-tracking)

- https://github.com/user-attachments/files/33587108/poc.zip (CNA: VulDB; exploit)

- https://github.com/huggingface/finetrainers/ (CNA: VulDB; product)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-124588; retrieved 2026-11-09; source updated 2026-11-09

Revision: 89a4226eeb3076290b2439fe94d6a7e1eb5ae37f66d5fecb805571cdcda06db4

Canonical: https://y2.dev/cve/CVE-2026-124588

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