AIOHTTP: Out-of-bounds heap read in C HTTP response parser error path (malformed chunked response)

SummaryAn out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. ImpactAn attacker controlled server, or possibly an accidental response could trigger a DoS in the client. WorkaroundIf unable to upgrade, the Python parser is unaffect...

PYSEC-2026-3546 AIOHTTP: HTTP request smuggling via WebSocket upgrade

Summary The HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades. Impact If using the server-side component, it may be possible for an attacker to execute a request smuggling vulnerability using an edge case in the WebSocket upgrade procedure. AIOHTT is unawar...

PYSEC-2026-3545 AIOHTTP: Out-of-bounds heap read in C HTTP response parser error path (malformed chunked response)

Summary An out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. Impact An attacker controlled server, or possibly an accidental response could trigger a DoS in the client. Workaround If unable to upgrade, the Python parser is...

RHEL 8 / 9 : Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update (Important) (RHSA-2026:50319)

The remote Redhat Enterprise Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:50319 advisory. Red Hat Ansible Automation Platform provides an enterprise framework for building, deploying and managing IT automation at scale. IT...

Linux Distros Unpatched Vulnerability : CVE-2026-69243

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the HTTP parsers were vulnerable to a request smuggling attack...

CVE-2026-69244

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigg...

DEBIAN-CVE-2026-69243

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades. If using the server-side component, an attacker may be able to execute a request smuggling vulnerability...

CVE-2026-69243

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades. If using the server-side component, an attacker may be able to execute a request smuggling vulnerability...

DEBIAN-CVE-2026-69244

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigg...

AZL-94553 CVE-2026-69244 affecting package python-aiohttp 3.6.2-3

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigg...

AZL-94547 CVE-2026-69243 affecting package python-aiohttp 3.6.2-3

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades. If using the server-side component, an attacker may be able to execute a request smuggling vulnerability...

CVE-2026-69244

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigg...

CVE-2026-69243

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades. If using the server-side component, an attacker may be able to execute a request smuggling vulnerability...

UBUNTU-CVE-2026-69243

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades. If using the server-side component, an attacker may be able to execute a request smuggling vulnerability...

UBUNTU-CVE-2026-69244

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigg...

AIOHTTP: Out-of-bounds heap read in C HTTP response parser error path (malformed chunked response)

Summary An out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. Impact An attacker controlled server, or possibly an accidental response could trigger a DoS in the client. Workaround If unable to upgrade, the Python parser is...

Use After Free

Overview Affected versions of this package are vulnerable to Use After Free in the C HTTP response parser error handling. An attacker can cause the application to crash or become unresponsive by sending a specially crafted malformed chunked response. Workaround This vulnerability can be mitigated...

CVE-2026-69244

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigg...

CVE-2026-69244

AIOHTTP vulnerability CVE-2026-69244 affects the aiohttp library prior to 3.14.3. The issue is an out-of-bounds heap read in the C-based response parser during error message construction, specifically in aiohttp/_http_parser.pyx where an llhttp error-position pointer is used to build a snippet fo...

CVE-2026-69244

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigg...