CVE-2026-39987

CVE-2026-39987 — Marimo Python Notebook Pre-Authenticated Remote Code Execution TL;DR A pre-authenticated remote code execution vulnerability in Marimo , an open-source Python notebook for data science and AI/ML. The terminal WebSocket endpoint /terminal/ws completely skips authentication...

CVE-2026-39987

CVE-2026-39987 — Marimo Pre-Auth RCE For educational and authorized security research purposes only. Description Pre-authenticated Remote Code Execution in Marimo = 0.20.4. The WebSocket endpoint /terminal/ws skips authentication validation, allowing an unauthenticated attacker to obtain a full...

marimo_CVE-2026-39987_RCE_PoC

CVE-2026-39987 - Marimo This script is ONLY for educational purposes and authorized testing. Unauthorized use of this tool against systems without explicit permission is ILLEGAL. The author is not responsible for the misuse of this information. 📋 Description Marimo versions prior to 0.23.0 presen...

CVE-2026-25253-research

CVE-2026-25253 Proof of Concept One-click RCE on OpenClaw via Cross-Site WebSocket Hijacking. DISCLAIMER: This code is provided for authorized security research and educational purposes only. Use of this code against systems without explicit written permission is illegal and unethical. The author...

CVE-2026-41940

Based on Watch Tower POC , Supports direct shell access via websocket , and adding root api keys for persistance...

CVE-2026-25253

CVE-2026-25253: One-Click RCE in OpenClaw via Auth Token Theft Affected Software: OpenClaw clawbot LEGAL DISCLAIMER: This code and writeup are provided for authorized security research and educational purposes only. Use of this exploit against systems without explicit written permission is illega...

openclaw-vuln-report

OpenClaw Vulnerability Analysis Report Chinese Interpretation of Security Vulnerability CVE-2026-25253 Read Online GitHub Pages: https://joseph19820124.github.io/openclaw-vuln-report/ Vulnerability Summary CVE : CVE-2026-25253 Score : CVSS 8.8 High Type : Cross-Site WebSocket Hijacking Impact :...

CVE-2026-39363

CVE-2026-39363 Vite Dev Server WebSocket Arbitrary File Read Vulnerability Vulnerability Overview Attribute| Information ---|--- CVE ID| CVE-2026-39363 GHSA ID| GHSA-p9ff-h696-f583 Vulnerability Type| Arbitrary File Read Affected Component| Vite Dev Server Affected Versions| Vite = 6.2.3...

CVE-2026-39987-lab-or-marimo-cve-lab

CVE-2026-39987 Lab Guide Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass An educational Docker lab for understanding, reproducing, and patching this critical vulnerability in marimo. Table of Contents Overview Architecture Quick Start Step-by-Step Walkthrough Step 1:...

cve-2026-69243-poc-aiohttp-smuggling

CVE-2026-69243 — aiohttp Request Smuggling CWE-444 Request smuggling via rejected WebSocket upgrade in aiohttp Or build the Rust version zero dependencies, std only: git clone https://github.com/JVBotelho/cve-2026-69243-poc-aiohttp-smuggling cd cve-2026-69243-poc-aiohttp-smuggling/poc cargo build...

CVE-2026-39363

CVE-2026-39363 — Vite Dev Server Arbitrary File Read PoC A drop-in PoC for GHSA-p9ff-h696-f583. It reads arbitrary files from the machine running the dev server by calling fetchModule over an unauthenticated HMR WebSocket, bypassing the HTTP-layer server.fs.allow restriction. Affected Versions...

CVE-2026-1010-WebSocket-Connection-Smuggling-via-Malformed-Upgrade-Header

CVE-2026-1010 – WebSocket Connection Smuggling Overview A reverse proxy and backend disagree on how to parse an HTTP request with a malformed WebSocket upgrade header. The proxy treats it as one request, while the backend interprets it as two, allowing an attacker to smuggle a hidden request. Thi...

go-zeek-broker-ws

Zeek Broker websocket interface library for Golang This library implements the Zeek Broker websocket interface. Helper functions are provided with reasonable mappings between Zeek and Go types. Usage The library contains two packages: encoding encoding models the recursive JSON-based data structu...

libsoup: libsoup: Heap buffer overflow from WebSocket Pong signal type confusion

A flaw was found in libsoup. When handling an incoming WebSocket Pong frame, SoupWebsocketConnection emitted the ::pong signal with a GByteArray pointer even though the signal is declared to pass a GBytes. Applications connecting a handler that follows the documented GBytes API can trigger heap...

libsoup: libsoup: Heap buffer overflow during outgoing permessage-deflate buffer growth

A flaw was found in libsoup. When the permessage-deflate WebSocket extension compresses a very large outgoing message, truncated size calculations used for GByteArray growth could wrap, causing zlib to write past the allocated buffer and resulting in a heap buffer overflow...

libsoup: libsoup: Heap buffer overflow during WebSocket message reassembly

A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used th...

libsoup: libsoup: Heap buffer overflow during WebSocket client-frame masking

A flaw was found in libsoup. When constructing a masked WebSocket client frame for a very large outgoing payload, size values passed to GByteArray allocation APIs could be truncated while the masking routine still used the full length, causing a heap buffer overflow...

Important: Red Hat Security Advisory: libsoup3 security update

An update for libsoup3 is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

libsoup: libsoup: Heap buffer overflow during WebSocket receive-buffer growth

A flaw was found in libsoup. When max-incoming-payload-size is unlimited 0, SoupWebsocketConnection could grow its incoming GByteArray based on an attacker-controlled frame length until the length wrapped, causing a heap buffer overflow while reading frame data...

CVE-2026-39987

⚠️ CVE-2026-39987 — Unauthenticated Shell in marimo 0.23.0 A reactive Python notebook tool gave attackers a full shell in one WebSocket request. 📌 Overview CVE-2026-39987 is a critical pre-auth RCE vulnerability in marimo — a popular open-source reactive notebook for Python modern Jupyter...