CVE-2026-54279 Details
Description
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, host-only cookies that are saved with CookieJar.save() and then restored later with CookieJar.load() lose their host-only status. This vulnerability is fixed in 3.14.1.
A vulnerability in AIOHTTP versions prior to 3.14.1 allows host-only cookies saved with the CookieJar's save() method to lose their host-only status when loaded back with the load() method. This issue could result in host-only cookies being sent to subdomains, which is not intended.
Users can upgrade to AIOHTTP version 3.14.1, where this vulnerability is fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 22, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-665 | Improper Initialization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| aiohttp aiohttp | < 3.14.1 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 26, 2026 | Initial Analysis | [email protected] |
| Jun 22, 2026 | CVE Modified | CISA-ADP |
| Jun 22, 2026 | New CVE Received | [email protected] |