CVE-2026-111749
Severity not reportedData quality: partial.
Some fields were not provided by the source.
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python.
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.
CVSS
—
Awaiting analysis by NVD
Timeline (UTC)
Published: 2026-10-19 17:17
Modified: 2026-10-22 21:17
NVD status: Undergoing Analysis
Last synced 1 day ago
Verified against the source API 2026-10-27 07:04 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/aio-libs/aiohttp/commit/6a07c171ef9f3be583e2907dcd1931372efca8d6 security-advisories@github.com
- https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4 security-advisories@github.com
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gx76-c99x-2c96 security-advisories@github.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:04 UTC · record ↗