En resumen
- CVE-2026-111748 es una vulnerabilidad MEDIO (CVSS 6.3) que afecta a aiohttp.
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.39%, mayor que el 32.7% de las vulnerabilidades.
- Solución: actualizar a 3.14.4 o posterior.
| Package | Affected versions | Patched versions |
|---|
| aiohttp PyPI | < 3.14.4
| 3.14.4
|
Description
Summary
An attacker sending an absolute-form request can spoof the scheme used.
Impact
If user code depends on the Request.scheme attribute for anything security related, an attacker may be able to circumvent this logic, tricking the application into thinking a connection is encrypted when it is not, or vice versa.
Workaround
A WAF rule to reject absolute-form requests (legitimate requests should only use this form for proxies).
NVD description
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, an attacker can send an absolute-form request that causes Request.scheme to use attacker-controlled request-target scheme data instead of the connection protocol. Applications that use Request.scheme for security decisions can consequently be tricked into treating an unencrypted connection as encrypted or an encrypted connection as unencrypted. This issue is fixed in version 3.14.4.
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