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CVE-2026-111749

2.3 low SSVC exploitation: none Published
NVD · CVE.org

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Host-Only scope on an existing parent-domain cookie can be removed by a subdomain. A user who accesses an untrusted subdomain can consequently have host-only protections stripped from cookies, although impact is limited when applications do not reflect those cookies to a browser. This issue is fixed in version 3.14.4.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 5

  1. StatusUndergoing Analysis → PublishedNVD modified 2026-10-22 20:52
  2. StatusPublished → Undergoing AnalysisNVD modified 2026-10-22 21:17
  3. StatusAwaiting Analysis → PublishedNVD modified 2026-10-19 17:04
  4. StatusReceived → Awaiting AnalysisNVD modified 2026-10-19 20:55
  5. First seenCVSS 2.3NVD modified 2026-10-19 17:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 3