---
cve: "CVE-2026-33210"
severity: "HIGH"
cvss: 8.3
epss: "84%"
vendor: "Ruby"
kev: false
exploited: false
published: "2026-03-20 22:57:08"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T09:30:24+02:00"
---

# CVE-2026-33210

> 8.3 HIGH · 🧪 PoC

## Beschreibung

Ruby JSON is a JSON implementation for Ruby. From version 2.14.0 to before versions 2.15.2.1, 2.17.1.2, and 2.19.2, a format string injection vulnerability can lead to denial of service attacks or information disclosure, when the allow_duplicate_key: false parsing option is used to parse user supplied documents. This issue has been patched in versions 2.15.2.1, 2.17.1.2, and 2.19.2.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/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 |

## Patch verfügbar (OSV)

- e26694b82e789e3cd26005a42c0883f1561f0d58 (Commit)
- e4a77e118b286840a6d25ba513f6e3e59d7752dc (Commit)

## Referenzen

- <https://github.com/ruby/json/security/advisories/GHSA-3m6g-2423-7cp3>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-33210) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_