Resource exhaustion in aiohttp - CVE-2025-69228
Published: January 6, 2026
Vulnerability identifier: #VU120996
CSH Severity: Medium
CVSS v4.0: 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/U:Green
CVE-ID: CVE-2025-69228
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: aio-libs
Affected software:
aiohttp
aiohttp
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources within the Request.post() method. A remote attacker can send large HTTP payloads to the application to trigger resource exhaustion and perform a denial of service (DoS) attack.
How to mitigate CVE-2025-69228
Install updates from vendor's website.