Crush Bug Telegram -

This recent bug specifically targeted Telegram Desktop (macOS and Windows).

The Issue: The client crashes immediately when a user attempts to join a group via an invite link if that group has specific permission restrictions.

Trigger: If a group has "Send messages" and "Send media" disabled for members, the client fails to handle the transition upon joining and crashes.

Status: Reported on the official Telegram Desktop GitHub in early 2025. 2. Malformed Character "Text Bombs"

Similar to the "Black Dot" or "Italian Flag" bugs on other messaging apps, Telegram has occasionally been vulnerable to specific strings of characters.

The Issue: A message containing a massive amount of hidden formatting characters or right-to-left (RTL) override marks.

Trigger: When the app attempts to render these complex Unicode characters within a message bubble or notification, the CPU usage spikes, leading to an application freeze or crash.

History: Telegram generally patches these quickly, but "crash text" scripts are often circulated in "raiding" or "trolling" communities. 3. Desktop UI Interaction Bugs (Late 2024)

A specific UI-related crash was documented where right-clicking in specific areas caused an immediate shutdown.

The Issue: Crashing when right-clicking just above the message input line in channels with Subtopics.

Impact: Users on Windows 10/11 reported that this pixel-perfect right-click triggered a fatal error in the interaction menu logic. 4. Media-Based Crashes

The Issue: Specially crafted .GIF or .MP4 files designed to exploit the app's media previewer.

Trigger: Often referred to as "crash videos," these files contain corrupted metadata that the Telegram "Stream" player cannot process, causing the app to quit the moment the user scrolls past the video in a chat. How to Fix/Avoid Crush Bugs

Clear Cache: Often, a "crash loop" is caused by a corrupted local database. Go to Settings > Data and Storage > Storage Usage > Clear Entire Cache. crush bug telegram

Update the Client: Ensure you are on the latest version. Check the official Telegram Desktop releases or the Bugs and Suggestions page for known issues.

Disable Auto-Download: To prevent "crash media" from triggering, disable Automatic Media Download in your settings.

Are you experiencing a specific crash right now? If you let me know your operating system and what you were doing when it happened, I can help you find a specific fix.

The Telegram "Crush Bug": Understanding the 2026 Zero-Click Threat

Recent reports in early 2026 have highlighted a critical security concern known colloquially among some users as a "crush bug" or, more accurately, a Zero-Click Remote Code Execution (RCE) vulnerability. This specific flaw, tracked as ZDI-CAN-30207, has sent shockwaves through the cybersecurity community due to its high severity and the unusual way it targets users. What is the "Crush Bug" in Telegram?

While "crush bug" is often used broadly by users to describe any glitch that causes an app to crash ("crush"), the most significant 2026 threat involves a zero-click exploit. Unlike traditional phishing where you must click a link, this vulnerability triggers automatically when your device receives a specially crafted animated sticker. Vulnerability ID: ZDI-CAN-30207. Severity Score: 9.8 / 10 (Critical).

How it works: The bug exploits Telegram’s rlottie library, which handles the rendering of animated stickers. When the app parses a malicious sticker to generate a preview, it can trigger a memory corruption that allows an attacker to execute code remotely. Affected Platforms and Risks

As of April 2026, the primary platforms identified as vulnerable are: Telegram for Android Telegram for Linux

The risks are severe. Because the attack is "zero-click," users can be compromised simply by being in a group where a malicious sticker is sent, or by receiving a direct message from an unknown sender. Attackers can potentially gain access to messages, session tokens, and personal media. The Ongoing Controversy

There is currently a significant dispute between independent researchers and Telegram's official team:

Researchers' View: Experts from Trend Micro’s Zero Day Initiative (ZDI) and CSIRT Italy have issued official alerts, confirming the vulnerability's existence and warning of its critical nature.

Telegram’s Stance: Telegram has officially denied the existence of this specific zero-click flaw, claiming their server-side validation prevents such malicious files from ever reaching the end-user. How to Protect Your Account

Until a definitive patch is confirmed and verified by third parties, security experts recommend several immediate steps: Last Seen & Online Precision – Telegram shows

Restrict Direct Messages: Go to Settings > Privacy and Security and set "Messages" to "My Contacts" only to prevent unknown senders from sending malicious stickers.

Disable Auto-Download (Partial Protection): While some reports suggest the exploit triggers during preview parsing regardless of download settings, disabling Automatic Media Download in Data and Storage is still a recommended "best practice".

Use Telegram Web: High-risk users are advised to temporarily use Telegram Web in a secure, updated browser, as the web version handles media parsing differently than the native Android/Linux apps.

Update Frequently: Check the Google Play Store or App Store daily for updates, as security patches are often released without major announcements.

For users experiencing standard "crashes" (not related to security exploits), clearing the app cache via Settings > Data and Storage > Storage Usage > Clear Cache often resolves common performance bugs. How to Fix Telegram App Crashing on Android & iPhone

The "crush bug" in Telegram typically refers to a variety of software vulnerabilities or "text bombs" that cause the application—and sometimes the entire device—to freeze, lag, or crash

. These bugs often exploit how the app processes specific character strings, media files, or interface actions. Significant Telegram Crash Bugs (2024–2026)

Recent reports highlight high-risk vulnerabilities and functional bugs that lead to application failure: "EvilVideo" Vulnerability (CVE-2024-7014) : Discovered in

, this zero-day exploit allowed attackers to send malicious files disguised as videos on Telegram for Android. While it primarily aimed to install malware, it could lead to crashes if the system failed to handle the payload. A successor, EvilLoader , emerged in March 2025 , disguising files as videos to execute malicious code. Animated Sticker Zero-Click (2026) March 2026

, researchers identified a critical vulnerability where simply receiving an animated sticker could trigger remote code execution and potential device compromise on Android and Linux. Unicode "Text Bombs"

: Like other messaging apps, Telegram has historically been susceptible to specific character strings (such as certain Telugu or Sindhi characters) that overload the rendering engine, causing immediate crashes when the message is viewed or pasted. Common Functional "Crush" Issues

Many users report crashes triggered by specific app interactions rather than malicious attacks: Paste Crash

: A recurring issue where pasting formatted text from apps like Apple Notes or ChatGPT causes Telegram to exit immediately. UI Interaction Bugs Right-Click/Long-Press Telegram offers several unique features that

: Clicking on certain messages in private groups or right-clicking on text inputs has been known to trigger segmentation faults. Emoji Hovering

: In some desktop versions (e.g., v6.7), simply hovering over an emoji caused the app to close due to rendering regressions. Specific Characters

: Typing specific letters (e.g., a capital 'O' in older versions) or accent characters can sometimes trigger a crash after the app has been open for a period.

Telegram crashes when typing a capital letter O into any chat. #4259

2. Telegram Features That Fuel the “Crush Bug”

Unlike WhatsApp or Signal, Telegram offers several unique features that, when combined, create fertile ground for parasocial crushes:

Option 1: The "Relatable" Text Post (For a Memes/Teens channel)

Header: 🐞 Crush Bug has entered the chat...

Body: Me: Trying to act cool and mysterious. My brain the second my crush replies: System Error. Does not compute.

I literally just: ✅ Sent a voice note instead of a text. ✅ Typed "You too" when they said "Have a good day." ✅ Spent 20 minutes analyzing if the period at the end of their sentence means they hate me.

Poll attached: Which one are you? ⚡️ The Dry Texter (Can't think of words) 🔥 The Over-sharer (Sends 30 memes in a row) ❄️ The Ghost (Reads reply, panics, disappears)

🔧 Method 3: Use the “Delete Chat” Remote Command

For advanced users: Telegram’s API allows you to delete an entire chat remotely without opening it.

Option 4: Caption for a Meme Image (Visual idea)

Imagine a photo of a panicked cartoon character (or a glitching phone screen).

Text on Image: Me explaining to my friends why I haven't replied in 6 hours. "I have the Crush Bug. My fingers are frozen."

Caption: That specific paralysis when you want to reply but you're afraid of saying the wrong thing... so you say nothing at all. 🦗 Send this to someone who gave you the bug. 🐞