PT-2026-53020

Name of the Vulnerable Software and Affected Versions python-engineio versions prior to 4.13.2 Description Two specific configurations of the server fail to verify the size of incoming messages before loading them into memory, which can lead to excessive memory allocations. This occurs during POS...

SUSE SLES16 Security Update : python-aiohttp (SUSE-SU-2026:22173-1)

The remote SUSE Linux SLES16 / SLESSAP16 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:22173-1 advisory. This update for python-aiohttp fixes the following issues - CVE-2026-22815: insufficient header/trailer handling can cause a denia...

Moderate: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: python-sentry-sdk: python3-sentry-sdk+aiohttp-2.48.0-6.hum1 noarch python3-sentry-sdk+asyncpg-2.48.0-6.hum1 noarch python3-sentry-sdk+bottle-2.48.0-6.hum1 noarch...

CVE-2026-54273

A flaw was found in AIOHTTP, an asynchronous HTTP client/server framework for asyncio and Python. An attacker could exploit this vulnerability by sending an unlimited number of pipelined requests, causing the system to consume excessive amounts of memory. This could lead to a Denial of Service Do...

CVE-2026-54274

A flaw was found in aiohttp, an asynchronous HTTP client/server framework. An attacker can exploit this vulnerability by sending large, incomplete websocket frame payloads. This can bypass normal memory usage limits, potentially leading to a Denial of Service DoS where the affected system becomes...

CVE-2026-54275

A flaw was found in aiohttp, an asynchronous HTTP client/server framework. This vulnerability allows a remote attacker to bypass the Transport Layer Security TLS Server Name Indication SNI check. This occurs when an application reuses an existing connection for multiple requests to the same domai...

CVE-2026-54277

A flaw was found in aiohttp, an asynchronous HTTP client/server framework for Python. A remote attacker can exploit this vulnerability by sending oversized lines within an HTTP request. This bypasses the maxlinesize check in the C parser, causing the system to use an excessive amount of memory...

CVE-2026-54278

A flaw was found in aiohttp, an asynchronous HTTP client/server framework. An attacker could send a specially crafted compressed request body that, during cleanup, would be decompressed into memory in one large chunk. This could potentially lead to a Denial of Service DoS condition, where the...

CVE-2026-54279

A flaw was found in aiohttp before 3.14.1. Host-only cookies saved with CookieJar.save and later restored with CookieJar.load lose their host-only flag, so cookies intended for a single host may be sent to subdomains after persistence...

python311-aiohttp-3.14.1-1.1 on GA media (moderate)

python311-aiohttp-3.14.1-1.1 on GA media Announcement ID: openSUSE-SU-2026:11097-1 Rating: moderate Cross-References: CVE-2026-50269 CVE-2026-54273 CVE-2026-54275 CVE-2026-54277 CVE-2026-54279 CVSS scores: CVE-2026-50269 SUSE : 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVE-2026-54273 SUSE ...

ROS-20260624-73-0042

The vulnerability in python-aiohttp is related to uncontrolled resource consumption. Exploiting this vulnerability can allow a remote attacker to cause service interruptions...

ROS-20260624-73-0044

The vulnerability in python-aiohttp is related to the failure to handle CR LF sequences in HTTP headers. Exploiting this vulnerability allows a remote attacker to inject arbitrary HTTP headers...

ROS-20260624-73-0046

The vulnerability in python-aiohttp is related to unlimited resource distribution. Exploiting this vulnerability can allow a remote attacker to cause service interruptions...

ROS-20260624-73-0047

The vulnerability in python-aiohttp is related to the failure to handle CR LF sequences in HTTP headers. Exploiting this vulnerability allows a remote attacker to inject arbitrary HTTP headers...

CVE-2026-54276

A flaw was found in aiohttp, an asynchronous HTTP client/server framework for asyncio and Python. The DigestAuthMiddleware component can send an authentication response after following a cross-origin redirect. This could allow a remote attacker, in conjunction with an open redirect vulnerability ...

CVE-2026-54277

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, it is possible to bypass the maxlinesize check in parts of an HTTP request in the C parser. If using the optimised C parser the default in pre-built wheels, then an attacker may be able to send...

PYSEC-2026-2111

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, during cleanup it is possible for a compressed request body to be decompressed into memory in one chunk. An attacker may be able to send a compressed payload in specific situations that could be...

PYSEC-2026-2111

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, during cleanup it is possible for a compressed request body to be decompressed into memory in one chunk. An attacker may be able to send a compressed payload in specific situations that could be...

CVE-2026-54278

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, during cleanup it is possible for a compressed request body to be decompressed into memory in one chunk. An attacker may be able to send a compressed payload in specific situations that could be...

CVE-2026-54279

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, host-only cookies that are saved with CookieJar.save and then restored later with CookieJar.load lose their host-only status. This vulnerability is fixed in 3.14.1...