---
cve: "CVE-2026-86836"
severity: "HIGH"
cvss: 8.4
epss: "0.1%"
vendor: "Eclipse Foundation"
kev: false
exploited: false
published: "2026-09-14 18:20:20"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-22T01:18:03+02:00"
---

# CVE-2026-86836

> 8.4 HIGH · 🧪 PoC

## Beschreibung

In Eclipse Ankaios versions 0.1.0 through 1.0.2, the agent creates workload files and Control Interface named pipes (FIFOs) under a predictable path derived from the agent name and a hash of the workload's runtime configuration. If a directory or FIFO already exists at that path when the agent (re)starts, the agent reuses it based only on an existence and/or file-type check, without validating its owner or permissions. A local, unprivileged user with write access to the same base directory (by default under `$TMPDIR/ankaios`, e.g. shared `/tmp`) can pre-create this path hierarchy, including the two Control Interface FIFOs, before the agent starts. The agent then treats the attacker-owned FIFOs as the legitimate Control Interface for the targeted workload. The attacker can complete the Control Interface handshake and issue requests using that workload's configured `controlInterfaceAccess` permissions, allowing impersonation of the workload and, depending on its configured permissions, unauthorized reading and/or modification of the cluster's desired state.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 5cc6dda28d7669e5d282bfed8891ef40fb3c8fdd (Commit)
- 3f7ab7f148e814c57cb7de1e2bb11b9a05b7814b (Commit)

## Referenzen

- <https://gitlab.eclipse.org/security/cve-assignment/-/work_items/280>
- <https://github.com/eclipse-ankaios/ankaios/pull/799>
- <https://github.com/eclipse-ankaios/ankaios/releases/tag/v1.0.3>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-86836) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_