---
cve: "CVE-2026-41586"
severity: "CRITICAL"
cvss: 9.3
epss: "41%"
vendor: "Hyperledger"
kev: false
exploited: false
published: "2026-05-07 06:16:04"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-19T01:36:56+02:00"
---

# CVE-2026-41586

> 9.3 CRITICAL · 🧪 PoC

## Beschreibung

Hyperledger Fabric is an enterprise-grade permissioned distributed ledger framework for developing solutions and applications. From versions 1.0.0 to 2.2.26, Channel.java implements readObject() and exposes deSerializeChannel() which call ObjectInputStream.readObject() on untrusted byte arrays without configuring an ObjectInputFilter. This is a classic Java deserialization RCE pattern. At time of publication, there are no publicly available patches.

## CVSS-Vektor

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

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

## Referenzen

- <https://github.com/hyperledger/fabric/security/advisories/GHSA-prf8-cf2x-rhx7>
- <https://hyperledger.github.io/fabric-gateway>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-41586) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_