Описание
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Host-Only scope on an existing parent-domain cookie can be removed by a subdomain. A user who accesses an untrusted subdomain can consequently have host-only protections stripped from cookies, although impact is limited when applications do not reflect those cookies to a browser. This issue is fixed in version 3.14.4.
A flaw was found in aiohttp. When processing HTTP cookies, a response from an untrusted subdomain can remove the Host-Only attribute from an existing parent-domain cookie. This vulnerability allows an attacker controlling a subdomain to bypass domain isolation protections, potentially exposing sensitive host-specific cookies across broader domain scopes.
Отчет
This vulnerability is rated as having a Moderate impact for Red Hat products because exploitation requires an aiohttp client session to interact with an untrusted subdomain while retaining a sensitive parent domain's cookie context. In standard Red Hat deployments, including OpenShift AI and Ansible Automation Platform, aiohttp operates primarily as an internal service connector querying predefined, trusted network endpoints. Because backend client sessions do not normally browse untrusted tenant subdomains or share session jars across untrusted domains, the practical risk to enterprise workloads is significantly reduced.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Exploit Intelligence | exploit-intelligence/vulnerability-analysis-rhel9 | Out of support scope | ||
| Lightspeed Core | lightspeed-core/lightspeed-stack-rhel9 | Fix deferred | ||
| Lightspeed Core | lightspeed-core/rag-tool-cpu-rhel9 | Fix deferred | ||
| Lightspeed Core | lightspeed-core/rag-tool-cuda-12.9-rhel9 | Fix deferred | ||
| Migration Toolkit for Applications 8 | mta/mta-solution-server-rhel9 | Fix deferred | ||
| OpenShift Lightspeed | openshift-lightspeed/lightspeed-ocp-rag-rhel9 | Fix deferred | ||
| OpenShift Lightspeed | openshift-lightspeed/lightspeed-service-api-rhel9 | Fix deferred | ||
| OpenShift Lightspeed | openshift-lightspeed-tech-preview/lightspeed-rag-tool-rhel9 | Fix deferred | ||
| OpenShift Lightspeed | openshift-lightspeed/lightspeed-service-api-rhel9 | Fix deferred | ||
| Red Hat AI Inference Server | rhaii/model-opt-cuda-rhel9 | Fix deferred |
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Дополнительная информация
Статус:
EPSS
4.2 Medium
CVSS3
Связанные уязвимости
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Host-Only scope on an existing parent-domain cookie can be removed by a subdomain. A user who accesses an untrusted subdomain can consequently have host-only protections stripped from cookies, although impact is limited when applications do not reflect those cookies to a browser. This issue is fixed in version 3.14.4.
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Host-Only scope on an existing parent-domain cookie can be removed by a subdomain. A user who accesses an untrusted subdomain can consequently have host-only protections stripped from cookies, although impact is limited when applications do not reflect those cookies to a browser. This issue is fixed in version 3.14.4.
AIOHTTP is an asynchronous HTTP client/server framework for asyncio an ...
AIOHTTP: Cookie from subdomain can remove Host-Only Scope from existing cookies
ELSA-2026-604898: python-oci-sdk security update (IMPORTANT)
EPSS
4.2 Medium
CVSS3