CVE-2026-34993
MEDIUMAIOHTTP Vulnerable to Deserialization of Untrusted Data
Title source: cnaDescription
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, using ``CookieJar.load()`` with untrusted input may allow arbitrary code execution. Most applications using this function will be doing so with the user's own data, so this is unlikely to affect many applications. Version 3.14.0 patches the issue. If an application does allow attacker controlled files to be loaded, a workaround on older releases would be to sanitize the files before loading.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-jg22-mg44-37j8
X_Refsource_Misc x_refsource_misc
https://github.com/aio-libs/aiohttp/commit/dcf40f30637e8752c76781cf6703b5a236749a00
Scores
CVSS v3
6.4
EPSS
0.0011
EPSS Percentile
1.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-502
Status
published
Products (3)
aio-libs/aiohttp
< 3.14.0
aiohttp/aiohttp
< 3.14.0
pypi/aiohttp
0 - 3.14.0PyPI
Published
Jun 02, 2026
Tracked Since
Jun 03, 2026