---
cve: "CVE-2026-15789"
severity: "MEDIUM"
cvss: 6.9
epss: "31%"
vendor: "moby"
kev: false
exploited: false
published: "2026-07-21 17:17:04"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-12T03:21:06+02:00"
---

# CVE-2026-15789

> 6.9 MEDIUM · 🧪 PoC

## Beschreibung

A custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory. The client needs to have valid permissions to access the BuildKit control API to issue builds, e.g., bypass authentication, etc.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- e42e1bfd389af7203238cce77b1f7dad447285e9 (Commit)

## Referenzen

- <https://github.com/moby/buildkit/security/advisories/GHSA-g2h8-426c-7976>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-15789) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_