CVE-2026-28403
7.6 · HIGHOverview
CVE-2026-28403 is a high-severity vulnerability affecting fka textream. It was published on March 2, 2026 and has a CVSS 3.1 base score of 7.6 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from fka. Update textream to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| fka | textream | >= 0, < 1.5.1 | Affected |
Frequently Asked Questions
What is CVE-2026-28403?
CVE-2026-28403 is a high-severity vulnerability affecting fka textream. It was published on March 2, 2026 and has a CVSS 3.1 base score of 7.6 (HIGH).
How severe is CVE-2026-28403?
This vulnerability has a CVSS 3.1 base score of 7.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-28403?
Check the references section for vendor advisories and patches from fka. Update textream to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-28403?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-28403 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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