CVE-2026-28412 Textream Vulnerable to Uncontrolled Resource Consumption (Denial of Service)
An attacker can crash the Textream macOS teleprompter application by exhausting resources through uncontrolled WebSocket connections.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-28412?
CVE-2026-28412 is a medium-severity denial of service vulnerability in f textream, published on 2 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Textream is a free macOS teleprompter app. Prior to version 1.5.1, the `DirectorServer` WebSocket server imposes no limit on concurrent connections. Combined with a broadcast timer that sends state to all connected clients every 100 ms, an attacker can exhaust CPU and memory by flooding the server with connections, causing the Textream application to freeze and crash during a live session. Version 1.5.1 fixes the issue.
Weakness: CWE-400
Which versions are affected by CVE-2026-28412?
It affects 1 product.
Products include Fka Textream.
How do I fix CVE-2026-28412?
No fix has been published for CVE-2026-28412 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-28412 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-28412 exists.
Other vulnerabilities in f textream
Sources
Also known as GHSA-qr5p-7x47-qxh9.