Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| aio-libs | aiohttp | < 3.14.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | python-aiohttp | 3.14.0-1 | — |
| Debian 13 | python-aiohttp | No fix yet | — |
| Debian 12 | python-aiohttp | 3.8.4-1+deb12u2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | python-aiohttp | No fix yet | — |
| Ubuntu 25.10 | python-aiohttp | No fix yet | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | python-aiohttp | No fix yet | — |
| Ubuntu Pro 24.04 LTS | python-aiohttp | No fix yet | — |
| Ubuntu Pro 22.04 LTS | python-aiohttp | No fix yet | — |
| Ubuntu Pro 20.04 LTS | python-aiohttp | No fix yet | — |
| Ubuntu Pro 18.04 LTS | python-aiohttp | No fix yet | — |
| Ubuntu Pro 16.04 LTS | python-aiohttp | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Satellite Utils 6 | rubygem-jwt | 2.10.3-1.el8sat | RHSA-2026:63387, RHSA-2026:63386, RHSA-2026:63385 |
| Red Hat Satellite Maintenance 6 | ansible-core | 1:2.16.19-1.el9sat | RHSA-2026:63387, RHSA-2026:63386, RHSA-2026:63385 |
| Red Hat Satellite Capsule 6 | ansible-core +1 | 1:2.16.19-1.el9sat | RHSA-2026:63387, RHSA-2026:63386, RHSA-2026:63385 |
| Red Hat Satellite Capsule 6 | openvox-server | 8.15.2-1.el8sat | RHSA-2026:63387, RHSA-2026:63386, RHSA-2026:63385 |
| Red Hat Satellite Capsule 6 | pulpcore-obsolete-packages | 1.3.1-5.el9pc | RHSA-2026:63386 |
| Red Hat Satellite Capsule 6 | python-aiohttp +1 | 3.14.3-1.el8pc | RHSA-2026:63387, RHSA-2026:63327 |
| Red Hat Satellite Capsule 6 | python3.12-aiohttp | 3.14.3-1.el9pc | RHSA-2026:63386, RHSA-2026:63385 |
| Red Hat Satellite Capsule 6 | python3.12-gitpython | 3.1.59-1.el9pc | RHSA-2026:63385 |
| Red Hat Satellite Capsule 6 | python3.12-pulpcore | 3.73.30-3.el9pc | RHSA-2026:63386 |
| Red Hat Satellite Capsule 6 | rubygem-jwt | 2.10.3-1.el8sat | RHSA-2026:63387, RHSA-2026:63386, RHSA-2026:63385 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Satellite 6 | ansible-core +1 | 1:2.16.19-1.el9sat | RHSA-2026:63387, RHSA-2026:63386, RHSA-2026:63385 |
| Red Hat Satellite 6 | openvox-server | 8.15.2-1.el8sat | RHSA-2026:63387, RHSA-2026:63386, RHSA-2026:63385 |
| Red Hat Satellite 6 | pulpcore-obsolete-packages | 1.3.1-5.el9pc | RHSA-2026:63386 |
| Red Hat Satellite 6 | python-aiohttp +1 | 3.14.3-1.el8pc | RHSA-2026:63387, RHSA-2026:63327 |
| Red Hat Satellite 6 | python3.12-aiohttp | 3.14.3-1.el9pc | RHSA-2026:63386, RHSA-2026:63385 |
| Red Hat Satellite 6 | python3.12-gitpython | 3.1.59-1.el9pc | RHSA-2026:63385 |
| Red Hat Satellite 6 | python3.12-pulpcore | 3.73.30-3.el9pc | RHSA-2026:63386 |
| Red Hat Satellite 6 | rubygem-jwt | 2.10.3-1.el8sat | RHSA-2026:63387, RHSA-2026:63386, RHSA-2026:63385 |
| Red Hat Ansible Automation Platform Inside 2 | receptor +1 | 1.6.7-1.el8ap | RHSA-2026:50336, RHSA-2026:50319 |
| Red Hat Ansible Automation Platform Developer 2 | automation-controller | 4.7.15-2.el9ap | RHSA-2026:50336 |
| Red Hat Ansible Automation Platform Developer 2 | automation-controller-cli | 4.6.32-1.el8ap | RHSA-2026:59136, RHSA-2026:59135, RHSA-2026:50336 |
| Red Hat Ansible Automation Platform Developer 2 | python-django +1 | 5.2.17-1.el10ap | RHSA-2026:59136 |
| Red Hat Ansible Automation Platform Developer 2 | python3.12-django | 5.2.17-1.el8ap | RHSA-2026:59136, RHSA-2026:59135 |
| Red Hat Ansible Automation Platform Developer 2 | receptor +1 | 1.6.7-1.el8ap | RHSA-2026:50336, RHSA-2026:50319 |
| Red Hat Ansible Automation Platform 2 | automation-controller +2 | 4.7.15-2.el9ap | RHSA-2026:50336 |
| Red Hat Ansible Automation Platform 2 | automation-controller-cli | 4.6.32-1.el8ap | RHSA-2026:59136, RHSA-2026:59135, RHSA-2026:50336 |
| Red Hat Ansible Automation Platform 2 | automation-controller-venv-tower | 4.6.31-1.el8ap | RHSA-2026:59136, RHSA-2026:59135, RHSA-2026:50336 |
| Red Hat Ansible Automation Platform 2 | automation-eda-controller +4 | 1.1.21-1.el8ap | RHSA-2026:50336, RHSA-2026:50319 |
| Red Hat Ansible Automation Platform 2 | automation-gateway-proxy +1 | 2.5.10-7.el8ap | RHSA-2026:50336, RHSA-2026:50319 |
| Red Hat Ansible Automation Platform 2 | automation-gateway-server | 2.5.20260824-1.el8ap | RHSA-2026:59135 |
| Red Hat Ansible Automation Platform 2 | automation-platform-ui | 2.6.13-1.el9ap | RHSA-2026:59136 |
| Red Hat Ansible Automation Platform 2 | python-django +1 | 5.2.17-1.el10ap | RHSA-2026:59136 |
| Red Hat Ansible Automation Platform 2 | python3.12-aiohttp | 3.14.1-2.el8ap | RHSA-2026:59136, RHSA-2026:59135, RHSA-2026:50336 |
| Red Hat Ansible Automation Platform 2 | python3.12-daphne | 4.2.2-1.el8ap | RHSA-2026:50336, RHSA-2026:50319 |
| Red Hat Ansible Automation Platform 2 | python3.12-django | 5.2.17-1.el8ap | RHSA-2026:59136, RHSA-2026:59135 |
| Red Hat Ansible Automation Platform 2 | python3.12-gitpython | 3.1.59-1.el8ap | RHSA-2026:59136, RHSA-2026:59135 |
| Red Hat Ansible Automation Platform 2 | python3.12-pillow | 12.3.0-1.el8ap | RHSA-2026:50336, RHSA-2026:50319 |
| Red Hat Ansible Automation Platform 2 | python3.12-pyasn1 | 0.6.4-1.el8ap | RHSA-2026:50336, RHSA-2026:50319 |
| Red Hat Ansible Automation Platform 2 | receptor +1 | 1.6.7-1.el8ap | RHSA-2026:50336, RHSA-2026:50319 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | python-aiohttp | 3.6.0-150100.3.35.1 | SUSE-SU-2026:3059-1 |
| SLES 15 SP6 | python-aiohttp | 3.6.0-150100.3.35.1 | SUSE-SU-2026:3207-1, SUSE-SU-2026:3059-1 |
| SLES 15 SP5 | python-aiohttp | 3.6.0-150100.3.35.1 | SUSE-SU-2026:3207-1, SUSE-SU-2026:3059-1 |
| SLES 15 SP4 | python-aiohttp | 3.6.0-150100.3.35.1 | SUSE-SU-2026:3207-1, SUSE-SU-2026:3059-1 |
| SLES 3 | python-aiohttp | 3.9.3-150400.10.43.1 | SUSE-SU-2026:3207-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | python-aiohttp | 3.11.16-160000.5.1 | SUSE-SU-2026:22173-1 |
| SLES for SAP 15 SP6 | python-aiohttp | 3.9.3-150400.10.43.1 | SUSE-SU-2026:3207-1 |
| SLES for SAP 15 SP5 | python-aiohttp | 3.9.3-150400.10.43.1 | SUSE-SU-2026:3207-1 |
| SLES for SAP 15 SP4 | python-aiohttp | 3.9.3-150400.10.43.1 | SUSE-SU-2026:3207-1 |
| SLES 16.0 | python-aiohttp | 3.11.16-160000.5.1 | SUSE-SU-2026:22173-1 |
| SLE HPC 15 SP5 | python-aiohttp | 3.9.3-150400.10.43.1 | SUSE-SU-2026:3207-1 |
| SLE HPC 15 SP4 | python-aiohttp | 3.9.3-150400.10.43.1 | SUSE-SU-2026:3207-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python-aiohttp | 3.14.0-1.1 | openSUSE-SU-2026:10963-1 |
| openSUSE Leap 16.0 | python-aiohttp | 3.11.16-160000.5.1 | openSUSE-SU-2026:21098-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | python-aiohttp | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | python39-oci-sdk +1 | 2.187.0-1.0.5.el9 | ELSA-2026-604898 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | airflow-3 | 3.2.2-r1 | — |
| Wolfi rolling | checkov | 3.2.533-r1 | — |
| Wolfi rolling | dask-kubernetes | 2026.3.0-r6 | — |
| Wolfi rolling | katib-earlystopping | 0.19.0-r18 | — |
| Wolfi rolling | open-webui | 0.9.6-r3 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | aiohttp | < 3.14.0 | 3.14.0 | GHSA-jg22-mg44-37j8 |
Advisories 14
- ELSA-2026-604898 Important: python-oci-sdk security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Oct 21, 2026
- RHSA-2026:63387 Red Hat Security Advisory: Satellite 6.17.11 Async Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:63386 Red Hat Security Advisory: Satellite 6.18.9 Async Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:63385 Red Hat Security Advisory: Satellite 6.19.4 Async Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:63327 Red Hat Security Advisory: Satellite 6.16.13 Async Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:59135 Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:59136 Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:50319 Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:50336 Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- SUSE-SU-2026:3207-1 Security update for python-aiohttp SUSE / openSUSE Security Updates · Jul 24, 2026
- SUSE-SU-2026:3059-1 Security update for python-aiohttp SUSE / openSUSE Security Updates · Jul 16, 2026
- openSUSE-SU-2026:21098-1 Security update for python-aiohttp SUSE / openSUSE Security Updates · Jun 30, 2026
- SUSE-SU-2026:22173-1 Security update for python-aiohttp SUSE / openSUSE Security Updates · Jun 24, 2026
- openSUSE-SU-2026:10963-1 python311-aiohttp-3.14.0-1.1 on GA media SUSE / openSUSE Security Updates · Jun 6, 2026