CVE-2026-28403
March 02, 2026
Textream is a free macOS teleprompter app. Prior to version 1.5.1, the "DirectorServer" WebSocket server ("ws://127.0.0.1:<httpPort+1>") accepts connections from any origin without validating the HTTP "Origin" header during the WebSocket handshake. A malicious web page visited in the same browser session can silently connect to the local WebSocket server and send arbitrary "DirectorCommand" payloads, allowing full remote control of the teleprompter content. Version 1.5.1 fixes the issue.
Affected Packages
https://github.com/f/textream.git (GITHUB):
Affected version(s) >=v1.0.0 <v1.5.1Fix Suggestion:
Update to version v1.5.1Related Resources (2)
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Contact UsCVSS v4
Base Score:
7.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
HIGH
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
LOW
Weakness Type (CWE)
Origin Validation Error
EPSS
Base Score:
0.01
