Banks: User-controlled prompt input can be parsed as privileged chat messages

Summary Banks' Prompt.chatmessages method parses every rendered output line as a potential ChatMessage JSON object. If attacker-controlled template data renders to JSON such as "role":"system","content":"...", Banks returns it as a privileged system message instead of treating it as plain...

PYSEC-2026-4202 Banks: User-controlled prompt input can be parsed as privileged chat messages

Summary Banks' Prompt.chatmessages method parses every rendered output line as a potential ChatMessage JSON object. If attacker-controlled template data renders to JSON such as "role":"system","content":"...", Banks returns it as a privileged system message instead of treating it as plain...

Pydantic AI Web chat UI (`Agent.to_web()`, `clai web`): the local chat endpoint does not validate the `Host` header

SummaryThe Pydantic AI development web chat UI Agent.toweb, clai web does not validate the Host header of incoming requests. A website a developer visits can use DNS rebinding to make requests to a chat UI running on that developer's machine appear same-origin to the browser, causing the served...

PYSEC-2026-4238 Langflow : Cross-user flow access and vertex execution via deprecated /api/v1/build/{flow_id}/vertices endpoints

Summary Before Langflow 1.10.1, two deprecated but still-routed endpoints in the chat API did not check that the authenticated caller owns the flow referenced in the URL path: - POST /api/v1/build/flowid/vertices retrieveverticesorder - POST /api/v1/build/flowid/vertices/vertexid buildvertex Any...

Seal

Seal Peer-to-peer, end-to-end encrypted chat. No inbox. No account to recover. Nobody's listening — not even us. github.com/Emn4tor/Seal !GitHub last commithttps://img.shields.io/github/last-commi...

PoC-CVE-2025-62222

PoC: CVE-2025-62222 - GitHub Copilot Chat RCE This repository contains a Proof of Concept PoC for the vulnerability CVE-2025-62222. It demonstrates how Remote Code Execution RCE can be achieved on a developer's machine by manipulating the context of GitHub Copilot Chat in VS Code via hidden promp...

MobSF_AI

MobSF AI Sidecar This project adds an AI-powered chat assistant to the Mobile Security Framework MobSF. It allows security analysts to ask questions about the analysis report generated by MobSF directly within the interface, leveraging OpenAI's model. Features Seamless Integration : Injects a...

EUVD-2026-101730

n8n before 1.123.83, 2.x before 2.41.4, and 2.42.x before 2.42.1 contains a stored cross-site scripting vulnerability in the Chat Trigger hosted-chat page, where insufficiently sanitised customCss values are interpolated into the page as markup. Workflow authors can publish a chat without n8n use...

EUVD-2026-101724

n8n before 2.41.4 and 2.42.0 contains an authorization bypass in the agent chat resume endpoint, which accepts a run identifier from the request body without verifying that the suspended checkpoint belongs to the caller. Authenticated project members can list and read other members' private agent...

Unity Linux 20.1070e Security Update: tomcat (UTSA-2026-130403)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-130403 advisory. Uncontrolled Resource Consumption vulnerability in Apache Tomcat's WebSocket chat example. This issue affects Apache Tomcat: from 11.0.0-M20 through 11.0.24, from...

CVE-2026-110847

n8n before 1.123.83, 2.x before 2.41.4, and 2.42.x before 2.42.1 contains a stored cross-site scripting vulnerability in the Chat Trigger hosted-chat page, where insufficiently sanitised customCss values are interpolated into the page as markup. Workflow authors can publish a chat without n8n use...

CVE-2026-110841

n8n before 2.41.4 and 2.42.0 contains an authorization bypass in the agent chat resume endpoint, which accepts a run identifier from the request body without verifying that the suspended checkpoint belongs to the caller. Authenticated project members can list and read other members' private agent...

CVE-2026-110847

The n8n workflow automation tool contains a Stored Cross-Site Scripting (XSS) vulnerability in the Chat Trigger hosted-chat page. This issue exists in versions before 1.123.83 , 2.x before 2.41.4 , and 2.42.x before 2.42.1 . The root cause is the interpolation of insufficiently sanitized customCs...

CVE-2026-110847 n8n before 1.123.83, 2.41.4, and 2.42.1 Stored XSS via Chat Trigger customCss Parameter

n8n before 1.123.83, 2.x before 2.41.4, and 2.42.x before 2.42.1 contains a stored cross-site scripting vulnerability in the Chat Trigger hosted-chat page, where insufficiently sanitised customCss values are interpolated into the page as markup. Workflow authors can publish a chat without n8n use...

CVE-2026-110847 n8n before 1.123.83, 2.41.4, and 2.42.1 Stored XSS via Chat Trigger customCss Parameter

n8n before 1.123.83, 2.x before 2.41.4, and 2.42.x before 2.42.1 contains a stored cross-site scripting vulnerability in the Chat Trigger hosted-chat page, where insufficiently sanitised customCss values are interpolated into the page as markup. Workflow authors can publish a chat without n8n use...

CVE-2026-110841 n8n before 2.41.4 and 2.42.0 Authorization Bypass in Agent Chat Resume Tool Approval

n8n before 2.41.4 and 2.42.0 contains an authorization bypass in the agent chat resume endpoint, which accepts a run identifier from the request body without verifying that the suspended checkpoint belongs to the caller. Authenticated project members can list and read other members' private agent...

CVE-2026-110841 n8n before 2.41.4 and 2.42.0 Authorization Bypass in Agent Chat Resume Tool Approval

n8n before 2.41.4 and 2.42.0 contains an authorization bypass in the agent chat resume endpoint, which accepts a run identifier from the request body without verifying that the suspended checkpoint belongs to the caller. Authenticated project members can list and read other members' private agent...

CVE-2026-110841

The n8n platform (versions before 2.41.4 and 2.42.0 ) is vulnerable to an authorization bypass in the agent chat resume endpoint. The root cause is the failure to verify that a suspended checkpoint belongs to the caller when a run identifier is accepted from the request body. Authenticated projec...

CVE-2026-91156 Discourse: Chat MessageBus delivers read-restricted messages to unauthorized users

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, MessageBus audience calculation could deliver messages from a read-restricted category chat channel to an authenticated user who could view the category but was not allowed to use Chat under the...

EUVD-2026-101300

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, MessageBus audience calculation could deliver messages from a read-restricted category chat channel to an authenticated user who could view the category but was not allowed to use Chat under the...