CVE-2026-34993AIOHTTP Vulnerable to Deserialization of Untrusted Data
Updated under an hour ago ()
Does this affect you?
It affects aio-libs aiohttp and 16 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L
- Weakness (CWE)
- CWE-502
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Modified
- Record last updated
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
aio-libs aiohttp aio_libs:aiohttp (from the name) | before 3.14.0 | CNA record |
Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8 redhat:ansible_automation_platform | from 0:3.14.1-2.el8ap not affected | CISA ADP |
Red Hat Red Hat Satellite 6.16 for RHEL 8 redhat:satellite | from 0:3.14.3-1.el8pc not affected | CISA ADP |
Red Hat Red Hat Satellite 6.16 for RHEL 8 redhat:satellite_capsule | from 0:3.14.3-1.el8pc not affected | CISA ADP |
Red Hat Red Hat Satellite 6.17 for RHEL 9 redhat:satellite_maintenance | from 1:2.16.19-1.el9sat not affected | CISA ADP |
Red Hat Red Hat AI Inference Server 3.3 redhat:ai_inference_server | from 1787601159 not affected | CISA ADP |
Red Hat Red Hat Discovery 2 redhat:discovery | from 1786638573 not affected | CISA ADP |
Red Hat Red Hat Enterprise Linux AI 3.3 redhat:enterprise_linux_ai | from 1788290314 not affected | CISA ADP |
Red Hat Red Hat Migration Toolkit for Applications 8.2 redhat:migration_toolkit_applications | from 1784109883 not affected | CISA ADP |
Red Hat Red Hat OpenShift AI 2.25 redhat:openshift_ai | from 1780078807 not affected | CISA ADP |
Red Hat Exploit Intelligence redhat:exploit_intelligence | 0 | CISA ADP |
Red Hat Lightspeed Core redhat:lightspeed_core | Versions not stated | CISA ADP |
Red Hat OpenShift Lightspeed redhat:openshift_lightspeed | Versions not stated | CISA ADP |
Red Hat Red Hat Ansible Automation Platform Ansible Core 2 redhat:ansible_core | 2 | CISA ADP |
Red Hat Red Hat Hardened Images redhat:hummingbird | 1 | CISA ADP |
4 | CISA ADP | |
aiohttp aiohttp aiohttp:aiohttp | before 3.14.0 | NVD |
References
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-jg22-mg44-37j8x-refsource-confirm, mitigation, patch, vendor-advisory
- https://github.com/aio-libs/aiohttp/commit/dcf40f30637e8752c76781cf6703b5a236749a00x-refsource-misc, patch
- https://access.redhat.com/errata/RHSA-2026:24977
- https://access.redhat.com/errata/RHSA-2026:34456
- https://access.redhat.com/errata/RHSA-2026:37275
- https://access.redhat.com/errata/RHSA-2026:42644
- https://access.redhat.com/errata/RHSA-2026:43038
- https://access.redhat.com/errata/RHSA-2026:50319
- https://access.redhat.com/errata/RHSA-2026:50336
- https://access.redhat.com/errata/RHSA-2026:50340
- https://access.redhat.com/errata/RHSA-2026:50357
- https://access.redhat.com/errata/RHSA-2026:50479
- https://access.redhat.com/errata/RHSA-2026:54760
- https://access.redhat.com/errata/RHSA-2026:59135
- https://access.redhat.com/errata/RHSA-2026:59136
- https://access.redhat.com/errata/RHSA-2026:59518
- https://access.redhat.com/errata/RHSA-2026:60520
- https://access.redhat.com/errata/RHSA-2026:62335
- https://access.redhat.com/errata/RHSA-2026:62336
- https://access.redhat.com/errata/RHSA-2026:63327
- https://access.redhat.com/errata/RHSA-2026:63385
- https://access.redhat.com/errata/RHSA-2026:63386
- https://access.redhat.com/errata/RHSA-2026:63387
- https://access.redhat.com/security/cve/CVE-2026-34993
- https://bugzilla.redhat.com/show_bug.cgi?id=2484099
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.