EUVD-2026-36601

Nezha Monitoring: Unbounded WebSocket Streams — Resource Exhaustion DoS...

Nezha Monitoring: Unbounded WebSocket Streams — Resource Exhaustion DoS

Description The Nezha dashboard exposes two endpoints that create long-lived WebSocket streams to monitored agents: - POST /api/v1/terminal → createTerminal terminal.go:27-67 - POST /api/v1/file → createFM fm.go:28-67 Both call rpc.NezhaHandlerSingleton.CreateStreamstreamId, ... which inserts a...

GHSA-Q6XX-5VR8-P898 Nezha vulnerable to cross-tenant terminal/file-manager session hijack via WebSocket stream UUID without ownership check

Summary In nezha v1.14.13–v1.14.14 and v2.0.0–v2.0.9, the WebSocket endpoints GET /ws/terminal/:id and GET /ws/file/:id authenticate the caller only by the presence of a valid stream UUID, with no ownership check tying that UUID to the user who created the stream. Any authenticated dashboard user...

EUVD-2026-31694

Hackney has unbounded buffer accumulation in WebSocket...

EUVD-2026-31690

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

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...

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...

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...

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-2026-39569

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...

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...

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...

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: tomcat11 / tomcat11-admin-webapps / tomcat11-doc / etc (SUSE-SU-2026:22196-1)

The remote SUSE Linux SLES16 / SLESSAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:22196-1 advisory. This update for tomcat11 fixes the following issues Update to Tomcat 11.0.22: - CVE-2026-41284: Unbounded read in WebDAV LOCK and...