CVE-2026-54279
HIGHAIOHTTP: Host-Only Cookies Become Domain Cookies After CookieJar Persistence
Title source: cnaDescription
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.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-2fqr-mr3j-6wp8
X_Refsource_Misc x_refsource_misc
https://github.com/aio-libs/aiohttp/commit/a329a7aacad5284f087af36103aff778746da0f2
Scores
CVSS v3
7.5
EPSS
0.0028
EPSS Percentile
20.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-665
Status
published
Products (2)
aio-libs/aiohttp
< 3.14.1
aiohttp/aiohttp
< 3.14.1
Published
Jun 22, 2026
Tracked Since
Jun 22, 2026