IPC Record-Separation Injection Vulnerability in Telegram Desktop

CVE-2026-107181

What is CVE-2026-107181?

CVE-2026-107181 is a significant vulnerability affecting the Telegram Desktop application, particularly versions prior to 7.2.9. This vulnerability revolves around an IPC (Inter-Process Communication) record-separation injection flaw present in the Core::Sandbox component of the software. By utilizing specially crafted tg:// links that include unescaped semicolons, remote attackers can exploit this vulnerability to inject malicious records. The potential outcome of such exploitation includes unauthorized file uploads to attacker-controlled channels, specifically targeting sensitive data like tdata session keys. This could enable attackers to take over user accounts, compromising user privacy and security within the Telegram messaging platform.

Potential impact of CVE-2026-107181

1. Account Takeover: The vulnerability allows attackers to gain unauthorized access to user accounts by obtaining critical session keys, thereby enabling them to impersonate users and gain control over conversations and personal information.

2. Data Exfiltration: By exploiting this vulnerability, attackers can upload sensitive files to external channels, posing a risk of confidential or personal data exposure. This can lead to significant privacy violations for users.

3. Increased Target Vulnerability: The ease of exploiting this flaw through simple crafted links could result in widespread exploitation across Telegram Desktop users, potentially leading to a surge in targeted attacks that might escalate into larger-scale security incidents affecting numerous users.

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