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CVE-2026-54273mediumCWE-770

AIOHTTP: HTTP/1 Pipelined Requests Queue Without Limit

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.6epss 0.3%
exploitation probability
0.3%top 80% of all CVEs
observed exploitation
nono source reports it
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, no limit was present on the number of pipelined requests that could be queued. An attacker may be able to use pipelined requests to use excessive amounts of memory, potentially leading to DoS. This vulnerability is fixed in 3.14.1.
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
Affected products
aio-libs · aiohttp