---
cve: "CVE-2026-106440"
severity: "HIGH"
cvss: 7.8
epss: "0.3%"
vendor: "hydra-ecosystem"
kev: false
exploited: false
published: "2026-10-06 19:18:12"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-11-10T01:54:00+01:00"
---

# CVE-2026-106440

> 7.8 HIGH · 🧪 PoC

## Beschreibung

Hydra is a framework for elegantly configuring complex applications. From 1.2.0 until 1.3.0 and 1.4.0.dev10, the hydra-optuna-sweeper package accepts a configuration-controlled dotted path in hydra.sweeper.custom_search_space, resolves it with hydra.utils.get_method(), and later invokes the returned callable in the Hydra controller process. Because get_method() is a trusted-input lookup helper and does not apply the execution policy used by instantiate(), an attacker who controls Optuna sweep configuration or command-line overrides can select importable Python code for execution with the application's privileges, including bypassing a trusted execution whitelist on affected Hydra 1.4 development releases. This issue is fixed in versions 1.3.0 and 1.4.0.dev10.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GitHub_M**
- State: PUBLISHED
- Stand: 2026-10-09 01:39:38
- CNA-CVSS: **7.8** (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **total**

## CVSS-Vektor

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

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

## Schwachstellen-Klasse

- **CWE-470** — Use of Externally-Controlled Input to Select Classes or Code
  The product uses external input with reflection to select which classes or code to use, but it does not sufficiently prevent the input from selecting improper classes or code.

## Angriffsmuster (CAPEC)

- [CAPEC-138 — Reflection Injection](https://capec.mitre.org/data/definitions/138.html) _(Severity: Very High)_

## Patch verfügbar (OSV)

- 273ce9c6e1bd54cfb0b594a4a924a4d3c9b5425f (Commit)
- 0dd18084589a3d3e577d1f1a8a48fb485c94a5e6 (Commit)

## Referenzen

- <https://github.com/hydra-ecosystem/hydra/security/advisories/GHSA-5jjj-9xc3-rm56>
- <https://github.com/hydra-ecosystem/hydra/commit/0dd18084589a3d3e577d1f1a8a48fb485c94a5e6>
- <https://github.com/hydra-ecosystem/hydra/commit/4720dfca2bde27fa140ec287a05709668fbdf168>
- <https://github.com/hydra-ecosystem/hydra/releases/tag/v1.3.7>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-106440/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_