---
cve: "CVE-2026-116011"
severity: "HIGH"
cvss: 8.7
epss: "0.7%"
vendor: "CrowCpp"
kev: false
exploited: false
published: "2026-10-24 12:16:57"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-11-07T14:07:03+01:00"
---

# CVE-2026-116011

> 8.7 HIGH · 🧪 PoC

## Beschreibung

Crow before 1.3.4 contains an uncontrolled recursion vulnerability in crow::json::load() that allows remote unauthenticated attackers to crash the server by sending deeply nested JSON. Attackers can send a request body with thousands of nested objects to exhaust the worker thread stack, terminating the process and dropping all connections.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-10-26 17:40:34
- CNA-CVSS: **8.7** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **partial**

## CVSS-Vektor

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

## Schwachstellen-Klasse

- **CWE-674** — Uncontrolled Recursion
  The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

## Angriffsmuster (CAPEC)

- [CAPEC-230 — Serialized Data with Nested Payloads](https://capec.mitre.org/data/definitions/230.html) _(Severity: High)_
- [CAPEC-231 — Oversized Serialized Data Payloads](https://capec.mitre.org/data/definitions/231.html) _(Severity: High)_

## Patch verfügbar (OSV)

- 54877af2d45bc4baeaabbf06b824e041a2faafb3 (Commit)
- 6956b7ca93c5df22f5aaccd670e5aa000c0d882b (Commit)

## Referenzen

- <https://github.com/CrowCpp/Crow/security/advisories/GHSA-7x84-xhp8-6cqj>
- <https://github.com/CrowCpp/Crow/commit/6956b7ca93c5df22f5aaccd670e5aa000c0d882b>
- <https://github.com/CrowCpp/Crow/releases/tag/v1.3.4>
- <https://github.com/CrowCpp/Crow/blob/v1.3.3/include/crow/json.h#L878>
- <https://www.vulncheck.com/advisories/crow-before-1.3.4-denial-of-service-via-deeply-nested-json-in-crow-json-load>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-116011/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_