---
cve: "CVE-2026-69244"
severity: "HIGH"
cvss: 7.1
epss: "30%"
vendor: "aio-libs"
kev: false
exploited: false
published: "2026-08-03 21:16:42"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T09:30:17+02:00"
---

# CVE-2026-69244

> 7.1 HIGH · 🧪 PoC

## Beschreibung

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigger a DoS in the client. The vulnerable path was error message construction in aiohttp/_http_parser.pyx, where an llhttp error-position pointer was used to build a snippet for malformed chunked responses and malformed request or response bytes at the buffer end. This issue is fixed in version 3.14.3.

## CVSS-Vektor

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

## Patch verfügbar (OSV)

- 49f65d54150397892f7bcc4aae887767d51c322d (Commit)
- 5e392ce0456f5235a4ee6ad46f0e806df2f15873 (Commit)

## Referenzen

- <https://github.com/aio-libs/aiohttp/security/advisories/GHSA-cq5v-8q36-5273>
- <https://github.com/aio-libs/aiohttp/pull/13223>
- <https://github.com/aio-libs/aiohttp/commit/49f65d54150397892f7bcc4aae887767d51c322d>
- <https://github.com/aio-libs/aiohttp/releases/tag/v3.14.3>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-69244) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_