---
cve: "CVE-2026-5241"
severity: "HIGH"
cvss: 7.7
epss: "55%"
vendor: "huggingface"
kev: false
exploited: false
published: "2026-06-03 14:16:46"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T00:31:06+02:00"
---

# CVE-2026-5241

> 7.7 HIGH · 🧪 PoC

## Beschreibung

A vulnerability in the LightGlue model loading path of huggingface/transformers version 5.2.0 allows an attacker-controlled model repository to execute arbitrary code during model initialization. The issue arises because the `trust_remote_code` parameter, intended to prevent remote code execution, is overridden by untrusted serialized configuration data in a nested code path. Specifically, when loading a LightGlue model using `AutoModel.from_pretrained()` with `trust_remote_code=False`, the `LightGlueConfig` reads the `trust_remote_code` value from the untrusted `config.json` file and propagates it into nested `AutoConfig.from_pretrained()` calls. This results in the execution of attacker-provided Python modules, even when the victim explicitly disables remote code execution. The vulnerability poses a high risk for environments such as API inference servers, research notebooks, CI/CD pipelines, and model evaluation workers, potentially leading to credential theft, lateral movement, or persistence/backdoor deployment.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Gering | warn |
| UI Interaktion | Erforderlich | good |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 676559d5022b74aaa0cee1cee0842b7f27c5320e (Commit)

## Referenzen

- <https://huntr.com/bounties/ceb3ce1a-4c45-497a-b25e-cb9a7685e619>
- <https://github.com/huggingface/transformers/commit/676559d5022b74aaa0cee1cee0842b7f27c5320e>
- <https://access.redhat.com/errata/RHSA-2026:34456>
- <https://access.redhat.com/errata/RHSA-2026:37275>
- <https://access.redhat.com/errata/RHSA-2026:42644>
- <https://access.redhat.com/errata/RHSA-2026:60520>
- <https://access.redhat.com/security/cve/CVE-2026-5241>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2484384>
- <https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5241.json>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-5241) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_