---
cve: "CVE-2025-69227"
severity: "MEDIUM"
cvss: 6.6
epss: "0.4%"
vendor: "aio-libs"
kev: false
exploited: false
published: "2026-01-06 00:15:48"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-22T17:23:23+02:00"
---

# CVE-2025-69227

> 6.6 MEDIUM · 🧪 PoC

## Beschreibung

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow for an infinite loop to occur when assert statements are bypassed, resulting in a DoS attack when processing a POST body. If optimizations are enabled (-O or PYTHONOPTIMIZE=1), and the application includes a handler that uses the Request.post() method, then an attacker may be able to execute a DoS attack with a specially crafted message. This issue is fixed in version 3.13.3.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GitHub_M**
- State: PUBLISHED
- Stand: 2026-01-06 19:02:48
- CNA-CVSS: **6.6** (`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/E:U`)

## 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/E:U
```

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

## Schwachstellen-Klasse

- **CWE-835** — Loop with Unreachable Exit Condition ('Infinite Loop')
  The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

## Patch verfügbar (OSV)

- 41f01ed680b7efc8f97677df45731b80328aad6c (Commit)
- bc1319ec3cbff9438a758951a30907b072561259 (Commit)

## Referenzen

- <https://github.com/aio-libs/aiohttp/security/advisories/GHSA-jj3x-wxrx-4x23>
- <https://github.com/aio-libs/aiohttp/commit/bc1319ec3cbff9438a758951a30907b072561259>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2025-69227/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_