Telegram Android: code execution via voice call

Telegram for Android

A flaw in Telegram for Android allowed attackers to run code on a victim's phone via a voice call, fixed in version 12.10.4.

Do this now

Upgrade Telegram for Android to version 12.10.4 now to block code execution via voice calls.

Fix it

Upgrade to Telegram for Android 12.10.4

First seen: 29 Oct 2026
Last update: 29 Oct 2026, 13:18 UTC
Fixed in: 12.10.4
Source: news
On the menu as: Android
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## Telegram Android: code execution via voice call
Severity: unknown. Patch status: patched.
Affected: Telegram for Android
Fixed in: 12.10.4

A flaw in Telegram for Android allowed attackers to run code on a victim's phone via a voice call, fixed in version 12.10.4.

## Steps
1. Search the repo, its CI and infra config for Telegram for Android. If present, report the version in use and whether it's affected.
2. Fix by release line: Telegram for Android: 12.10.4.

## Fix by release line
| Line | State | Fix | Until then |
|---|---|---|---|
| Telegram for Android | fixed | 12.10.4 | — |

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://thehackernews.com/2026/10/telegram-android-flaw-lets-attackers.html
https://pwned.coffee/i/telegram-android-code-execution-via-voice-call

Receipt

Exploitation: No known exploitation
Fix by release line: Product Affected Fixed in Source
Telegram for Android before 12.10.4 12.10.4 Reported checked 29 Oct
Score: No CVSS published yet: severity unknown.
Last checked: 30 Oct 2026, 00:18 UTC

Product	Affected	Fixed in	Source
Telegram for Android	before 12.10.4	12.10.4	Reported checked 29 Oct

Sources: KEV – CVE record – Vendor –

Sources

feeds.feedburner.com: Telegram Android Flaw Lets Attackers Run Code When Users Answer Voice Calls

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