---
cve: "CVE-2026-104843"
severity: "MEDIUM"
cvss: 5.9
epss: "0.4%"
vendor: "astral-sh"
kev: false
exploited: false
published: "2026-10-02 16:16:46"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-05T16:08:15+02:00"
---

# CVE-2026-104843

> 5.9 MEDIUM · 🧪 PoC

## Beschreibung

uv is a Python package and project manager written in Rust. From 0.12.7 until 0.12.18, uv wheel extraction on Windows can process a malicious wheel in a way that writes a file outside the installation prefix, including an executable in a directory already present on the user's PATH. Non-Windows hosts are not affected. This issue is fixed in version 0.12.18.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GitHub_M**
- State: PUBLISHED
- Stand: 2026-10-02 16:00:53
- CNA-CVSS: **5.9** (`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

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

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |

## Patch verfügbar (OSV)

- 67169645278ce082638d619beefa6d062540843b (Commit)
- 01cb90c1a4f88af09906cb60de9766d2add4a062 (Commit)

## Referenzen

- <https://github.com/astral-sh/uv/security/advisories/GHSA-2cv4-cqwr-gwf7>
- <https://github.com/astral-sh/uv/pull/21923>
- <https://github.com/astral-sh/uv/commit/67169645278ce082638d619beefa6d062540843b>
- <https://github.com/astral-sh/uv/releases/tag/0.12.18>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-104843) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_