RLottie Numeric Truncation Remote Code Execution Vulnerability

Executive Summary

This is a numeric truncation vulnerability in Telegram's rlottie library that allows remote code execution. It occurs due to improper validation of user-supplied data, causing a write before the start of an allocated buffer. Exploitation requires user interaction like visiting a malicious page or opening a harmful file.

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Detection Guidance

Detection of CVE-2026-111105 requires monitoring for unusual activity related to the rlottie library in Telegram. Check for crashes or memory corruption when processing media files. Inspect network traffic for suspicious file downloads or page visits. No specific commands are provided in the available resources.

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Impact Analysis

An attacker could exploit this to execute arbitrary code on your system with the same privileges as the current process. This could lead to data theft, malware installation, or system compromise if you interact with a malicious file or page.

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Compliance Impact

This vulnerability could lead to unauthorized code execution on affected systems, potentially resulting in data breaches or unauthorized access to sensitive information. Such incidents may violate compliance requirements under GDPR or HIPAA, depending on the data involved and the organization's obligations.

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Mitigation Strategies

Restrict interaction with the affected Telegram product. Avoid visiting untrusted pages or opening suspicious files to prevent exploitation.

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