CVE-2026-22815 | THREATINT

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, insufficient restrictions in header/trailer handling could cause uncapped memory usage. This issue has been patched in version 3.13.4.

PUBLISHED Reserved 2026-01-09 | Published 2026-04-01 | Updated 2026-04-04 | Assigner GitHub_M

MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Problem types

CWE-400: Uncontrolled Resource Consumption

CWE-770: Allocation of Resources Without Limits or Throttling

Product status

< 3.13.4

affected

References

github.com/...iohttp/security/advisories/GHSA-w2fm-2cpv-w7v5

github.com/...ommit/0c2e9da51126238a421568eb7c5b53e5b5d17b36

github.com/aio-libs/aiohttp/releases/tag/v3.13.4

cve.org (CVE-2026-22815)

nvd.nist.gov (CVE-2026-22815)

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