CVE-2026-111066 AIOHTTP - Denial of Service

AIOHTTP 2.0.0 to 3.14.4 contains a denial of service caused by unbounded open file descriptors retention in multipart request processing, letting unauthenticated attackers exhaust file descriptors, exploit requires crafted multipart requests.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
19 October 2026
Updated
20 October 2026
Weakness
CWE-400

Vendor fix

Update to version 3.14.4 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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