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AIOHTTP: File descriptor exhaustion in multipart requests

Type: advisorySource: Official CVE List1 source record

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. From 2.0.0 until 3.14.4, multipart request processing can retain an unbounded number of open file descriptors. An unauthenticated attacker can consequently exhaust file descriptors with specially crafted multipart requests when a handler uses Request.post(). This issue is fixed in version 3.14.4.

Announced Source revision 1
Original source ↗

CVE-2026-111066

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-111066

aiohttp

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "aio-libs",
    "product": "aiohttp",
    "versions": [
      {
        "status": "affected",
        "version": ">= 2.0.0, < 3.14.4"
      }
    ]
  }
]
Related CVEs
CVE-2026-111066

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#42317 · Revision 1
Added to Heist Feed
Publisher date
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