GO-2026-5838 Mattermost doesn't properly validate msgpack-encoded WebSocket frames before memory allocation in github.com/mattermost/mattermost-server

Mattermost doesn't properly validate msgpack-encoded WebSocket frames before memory allocation in github.com/mattermost/mattermost-server...

AlmaLinux 9 : nodejs:24 (ALSA-2026:35891)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:35891 advisory. ip-address: ip-address: Cross-site scripting via improper HTML escaping of untrusted input CVE-2026-42338 undici: undici: Denial of Service due to...

undici: undici: Denial of Service due to unbounded memory growth via WebSocket frames

A flaw was found in undici. A malicious WebSocket server can exploit this by streaming numerous small or empty continuation frames. This can bypass per-frame and cumulative-size validation, leading to unbounded memory growth in the client process. The primary consequence is memory exhaustion,...

OESA-2026-2839 python-aiohttp security update

Async http client/server framework asyncio. Security Fixes: No limit was present on the number of pipelined requests that could be queued. Impact An attacker may be able to use pipelined requests to use excessive amounts of memory, potentially leading to DoS.CVE-2026-54273 If an attacker sends...

OESA-2026-2838 python-aiohttp security update

Async http client/server framework asyncio. Security Fixes: No limit was present on the number of pipelined requests that could be queued. Impact An attacker may be able to use pipelined requests to use excessive amounts of memory, potentially leading to DoS.CVE-2026-54273 If an attacker sends...

undici: undici: Denial of Service due to unbounded memory growth via WebSocket frames

A flaw was found in undici. A malicious WebSocket server can exploit this by streaming numerous small or empty continuation frames. This can bypass per-frame and cumulative-size validation, leading to unbounded memory growth in the client process. The primary consequence is memory exhaustion,...

undici: undici: Denial of Service due to unbounded memory growth via WebSocket frames

A flaw was found in undici. A malicious WebSocket server can exploit this by streaming numerous small or empty continuation frames. This can bypass per-frame and cumulative-size validation, leading to unbounded memory growth in the client process. The primary consequence is memory exhaustion,...

ALSA-2026:35892 Important: nodejs:22 security, bug fix, and enhancement update

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Security Fixes: ip-address: ip-address: Cross-site scripting via improper HTML escaping of untrusted input CVE-2026-42338 undici: undici: Denial of Service due to...

ALSA-2026:35891 Important: nodejs:24 security, bug fix, and enhancement update

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Security Fixes: ip-address: ip-address: Cross-site scripting via improper HTML escaping of untrusted input CVE-2026-42338 undici: undici: Denial of Service due to...

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...

Node.js Module Undici 6.17.x < 6.27.0 / 7.x < 7.28.0 / 8.x < 8.5.0 DoS (CVE-2026-12151)

The nodejs module Undici detected on the host is version 6.17.x prior to 6.27.0, 7.x prior to 7.28.0, or 8.x prior to 8.5.0. It is, therefore, affected by a denial of service vulnerability: - The undici WebSocket client enforces maxPayloadSize on the cumulative byte count of fragments in a messag...

CVE-2026-54236 vLLM: incomplete CVE-2026-22778 fix leaks PIL repr addresses via Anthropic router

vLLM is an inference and serving engine for large language models LLMs. Prior to 0.23.1rc0, the fix for CVE-2026-22778, which introduced a sanitizemessage helper that strips object-repr memory addresses from error messages before they reach the client, is incomplete: several response paths echo...

CVE-2026-54236

CVE-2026-54236 affects vLLM versions before 0.23.1rc0. Five code paths bypass the sanitize_message global exception handler, leaking heap addresses via exception messages: (1) Anthropic API router POST /v1/messages and POST /v1/messages/count_tokens (vllm/entrypoints/anthropic/api_router.py), (2)...

CVE-2026-54236

vLLM is an inference and serving engine for large language models LLMs. Prior to 0.23.1rc0, the fix for CVE-2026-22778, which introduced a sanitizemessage helper that strips object-repr memory addresses from error messages before they reach the client, is incomplete: several response paths echo...

CVE-2026-54274

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, if an attacker sends large incomplete websocket frame payloads, it may be possible to bypass the usual size limits on memory use. This vulnerability is fixed in 3.14.1...

PYSEC-2026-2108

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, if an attacker sends large incomplete websocket frame payloads, it may be possible to bypass the usual size limits on memory use. This vulnerability is fixed in 3.14.1...

PYSEC-2026-2108

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, if an attacker sends large incomplete websocket frame payloads, it may be possible to bypass the usual size limits on memory use. This vulnerability is fixed in 3.14.1...

CVE-2026-54274

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, if an attacker sends large incomplete websocket frame payloads, it may be possible to bypass the usual size limits on memory use. This vulnerability is fixed in 3.14.1...

EUVD-2026-38311

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, if an attacker sends large incomplete websocket frame payloads, it may be possible to bypass the usual size limits on memory use. This vulnerability is fixed in 3.14.1...

CVE-2026-54274 AIOHTTP: Incomplete websocket frame payloads bypass memory limits

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, if an attacker sends large incomplete websocket frame payloads, it may be possible to bypass the usual size limits on memory use. This vulnerability is fixed in 3.14.1...