CVE-2026-111066

Summary

AIOHTTP: File descriptor exhaustion in multipart requests

Severity

high

EPSS

0.4% (p35)

CWE

CWE-400, CWE-770

Also known as

GHSA-9xw5-w5jj-pvcg

Published

2026-10-20

Updated

2026-10-20

Advisory details

Summary

An attacker can exhaust file descriptors with specially crafted multipart requests.

Impact

If a handler uses Request.post(), it may be possible for an attacker to use an unlimited number of file descriptors, potentially resulting in resource exhaustion.

References

• https://github.com/advisories/GHSA-9xw5-w5jj-pvcg
• https://github.com/aio-libs/aiohttp/security/advisories/GHSA-9xw5-w5jj-pvcg
• https://nvd.nist.gov/vuln/detail/CVE-2026-111066
• https://github.com/aio-libs/aiohttp/commit/2d94633b7f1b4c1ba07d647b629a8440652b2d09
• https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4

Related advisories

• CVE-2026-111064 — high · PyPI/aiohttp
• GHSA-2g87-pp6c-29x5 — high · PyPI/aiohttp
• CVE-2026-111065 — medium · PyPI/aiohttp
• GHSA-f48p-c9v4-h7xv — high · Go/github.com/labstack/echo/v4
• CVE-2026-115776 — high · PyPI/Twisted
• CVE-2026-115778 — high · PyPI/Twisted
• CVE-2026-115775 — high · PyPI/Twisted
• CVE-2026-114144 — high · npm/toml

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