CVE-2026-54279

EUVD-2026-38310
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 20.05%
Affected Products (NVD)
VendorProductVersion
aiohttpaiohttp
𝑥
< 3.14.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
python-aiohttp
bookworm
vulnerable
bookworm (security)
vulnerable
bullseye
vulnerable
bullseye (security)
vulnerable
forky
3.14.1-4
fixed
sid
3.14.1-4
fixed
trixie
no-dsa
trixie (security)
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
python-aiohttp
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
questing
ignored
resolute
needs-triage
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
python3-aiohttp
suse enterprise sap 15 SP4
3.6.0-150100.3.38.1
fixed
suse enterprise server 15 SP4
3.6.0-150100.3.38.1
fixed
python311-aiohttp
suse enterprise sap 15 SP4
3.9.3-150400.10.43.1
fixed
suse enterprise server 15 SP4
3.9.3-150400.10.43.1
fixed
Common Weakness Enumeration
References
https://github.com/aio-libs/aiohttp/commit/a329a7aacad5284f087af36103aff778746da0f2
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-2fqr-mr3j-6wp8