Hackney has unbounded buffer accumulation in WebSocket

Summary The WebSocket client in src/hackneyws.erl imposes no upper bound on memory consumption across three distinct code paths. In each case, an attacker-controlled WebSocket server can exhaust the connecting process's memory without any authentication or special client configuration. Details 1...

EUVD-2026-31694

Hackney has unbounded buffer accumulation in WebSocket...

GHSA-F9VR-G2G2-X9FG Hackney has CRLF / header injection in WebSocket upgrade request

Summary CRLF injection in hackney's WebSocket upgrade request builder src/hackneyws.erl. init/1 copies the host, path, headers, and protocols options from the caller-supplied opts map verbatim into wsdata, and dohandshake/1 splices them directly into the raw HTTP/1.1 upgrade request by binary...

EUVD-2026-31690

Hackney has CRLF / header injection in WebSocket upgrade request...

Hackney has CRLF / header injection in WebSocket upgrade request

Summary CRLF injection in hackney's WebSocket upgrade request builder src/hackneyws.erl. init/1 copies the host, path, headers, and protocols options from the caller-supplied opts map verbatim into wsdata, and dohandshake/1 splices them directly into the raw HTTP/1.1 upgrade request by binary...

GHSA-M9GH-VJ53-GVH9 python-engineio has possible denial of service due to maximum payload size sometimes not being enforced

Impact There are two specific configurations of the python-engineio server in which the size of incoming messages is not checked before the messages are loaded into memory. An attacker can take advantage of these to cause unnecessary memory allocations in the python-engineio server. The two cases...

Allocation of Resources Without Limits or Throttling

Overview python-engineio is a Python implementation of the Engine.IO realtime client and server. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the handling of incoming messages when using ASGI with the long polling transport for POST...

python-engineio has possible denial of service due to maximum payload size sometimes not being enforced

Impact There are two specific configurations of the python-engineio server in which the size of incoming messages is not checked before the messages are loaded into memory. An attacker can take advantage of these to cause unnecessary memory allocations in the python-engineio server. The two cases...

Security Bulletin: IBM Terracotta is affected by multiple Spring Framework vulnerabilities that could allow exploiting WebSocket sessions and cross-site scripting

Summary IBM Terracotta uses Spring Framework as an application foundation within the product. Vulnerability Details CVEID:CVE-2026-41838 DESCRIPTION: IDs for WebSocket sessions in the spring-websocket module are not cryptographically unpredictable, which may be possible to exploit in combination...

K000161931: Spring Framework vulnerability CVE-2026-41838

Security Advisory Description IDs for WebSocket sessions in the spring-websocket module are not cryptographically unpredictable, which may be possible to exploit in combination with inadequate authorization rules. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1....

Session Hijacking

Chainlit is vulnerable to Session Hijacking. The vulnerability is due to missing ownership verification during WebSocket session restoration, where a valid sessionId can be used to restore another user's authenticated session, allowing attackers to gain unauthorized access with the victim's...

Security Bulletin: IBM Maximo Application Suite - Manage Component uses ws-8.17.1 in inspections application which is vulnerable to CVE-2026-45736

Summary IBM Maximo Application Suite - Manage Component uses ws-8.17.1 in inspections application which is vulnerable to CVE-2026-45736. This bulletin contains information regarding the vulnerability and its fixture. Vulnerability Details CVEID:CVE-2026-45736 DESCRIPTION: ws is an open source...

OpenClaw AI Agent Gateway RCE

Exploits exposed OpenClaw AI agent gateways by abusing operator WebSocket access chat.send with a stolen or supplied gateway token. Also supports CVE-2026-25253 malicious URL generation for token exfiltration chains. !/usr/bin/env python3 -- coding: utf-8 -- from kittysploit import from...

Google Details Turla's New STOCKSTAY Backdoor Used in Ukraine Espionage Attacks

The Russian state-sponsored threat actor known as Turla has been attributed to a previously undocumented .NET backdoor called STOCKSTAY that has been deployed against government and military organizations in Ukraine, and entities that have an interest in Italian foreign policy. Describing the...

MAL-2026-6496 Malicious code in @dervix/ws (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 79b9ab7431b1a6a1250c089e2ea33f54ad92313f587fbd2aabc020c12be55f69 Package @dervix/ws impersonates the popular ws WebSocket library — package.json copies the legitimate ws project's homepage...

EUVD-2026-39568

The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This absence of rate limiting may allow an attacker to conduct denial-of-service attacks or brute-force attacks to gain unauthorized access...

EUVD-2026-39566

The WebSocket backend uses charging station identifiers to uniquely associate sessions but allows multiple endpoints to connect using the same session identifier. This implementation results in predictable session identifiers. This vulnerability may allow unauthorized users to authenticate as oth...

EUVD-2026-39569

WebSocket endpoints lack proper authentication mechanisms, enabling attackers to impersonate charging stations. As a result, attackers can exploit this weakness to gain unauthorized access to sensitive data or perform unauthorized actions. Given that no authentication is required, this can lead t...

SUSE SLES16: tomcat10 / tomcat10-admin-webapps / tomcat10-doc / etc (SUSE-SU-2026:22197-1)

The remote SUSE Linux SLES16 / SLESSAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:22197-1 advisory. This update for tomcat10 fixes the following issues Update to Tomcat 10.1.55: - CVE-2026-41284: Unbounded read in WebDAV LOCK and...

Curl 8.16.0 < 8.21.0 WebSocket Auto-PONG Memory Exhaustion

The version of curl installed on the remote host is 8.16.0 prior to 8.21.0. It is, therefore, affected by a denial of service vulnerability: - Because curl lacks an upper bound on memory allocation for unacknowledged WebSocket frames, a malicious server can exhaust all available memory by floodin...