AIOHTTP: Late size enforcement for non-file multipart fields causes memory DoS
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 2.7epss 0.4%
exploitation probability
0.4%top 69% of all CVEs
observed exploitation
nono source reports it
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, for some multipart form fields, aiohttp read the entire field into memory before checking client_max_size. This issue has been patched in version 3.13.4.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
Affected products
aio-libs · aiohttp