CVE-2026-62968 in Dream Displays
Summary
by MITRE • 10/30/2026
Dream Displays provides in-game screens for streaming videos in Minecraft. From 1.5.0 until 1.8.2, user-controlled input can influence arguments passed to `yt-dlp` under specific conditions. Unintended command-line options may be interpreted by `yt-dlp`, potentially altering its behavior. This issue is fixed in version 1.8.2.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 10/30/2026
The vulnerability identified in Dream Displays, a Minecraft mod designed for rendering streaming video content on in-game screens, represents a significant security risk rooted in improper input validation and command injection flaws within the application's media processing pipeline. Specifically affecting versions ranging from 1.5.0 to 1.8.2, this flaw allows user-controlled inputs to directly influence arguments passed to yt-dlp, a popular command-line tool used for downloading videos from various websites. The core technical issue lies in how the mod constructs and executes system commands when processing video URLs or metadata provided by users. Instead of sanitizing or strictly validating these inputs against an allowlist of expected parameters, the application passes them directly into the yt-dlp execution context without adequate isolation or escaping mechanisms.
This architectural oversight enables a classic command injection scenario where malicious actors can manipulate the behavior of the underlying utility through specially crafted input strings. By injecting unintended command-line options, an attacker can alter how yt-dlp processes requests, potentially leading to unauthorized data exfiltration, remote code execution via subsequent script hooks, or denial of service conditions by forcing the tool into infinite loops or resource-intensive operations. The severity is compounded by the fact that Minecraft mods often run with elevated privileges relative to standard sandboxed environments, meaning successful exploitation could compromise not only the local machine running the game but also potentially affect network resources if yt-dlp is configured to fetch content from untrusted sources based on injected parameters.
From a classification perspective, this vulnerability aligns closely with CWE-78 Improper Neutralization of Special Elements used in an OS Command and CWE-94 Improper Control of Generation of Code or Script, as the application fails to properly neutralize user input before using it in command construction. In terms of adversary tactics, this flaw facilitates techniques associated with ATT&CK T1059 Command and Scripting Interpreter, where attackers leverage system utilities to execute arbitrary commands within a trusted environment. The lack of strict parameter validation allows for lateral movement or privilege escalation if the mod is integrated into larger server infrastructures that rely on automated video processing workflows.
Mitigation strategies must prioritize immediate updates to version 1.8.2 or later, which addresses these input handling deficiencies through improved sanitization and argument parsing logic. For environments where upgrading is not immediately feasible, administrators should implement network-level controls such as firewalls to restrict outbound connections from the Minecraft client to known video hosting domains only, thereby limiting the attack surface for yt-dlp interactions. Additionally, running the game under restricted user accounts with minimal system privileges can reduce the impact of any successful exploitation attempts by preventing access to sensitive files or execution of arbitrary binaries outside the intended scope.