CVE-2026-28403

HIGH

7.6

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.

CVE Details

CVSS v3.1 Score7.6

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published3/2/2026

Last Modified3/10/2026

Sourcenvd

Honeypot Sightings0

Affected Products

fka:textream

Weaknesses (CWE)

CWE-346

References

https://github.com/f/textream/commit/f5ebad82750b9313386c34af8f0ede50c213a8a0(security-advisories@github.com)

https://github.com/f/textream/security/advisories/GHSA-wr3v-x247-337w(security-advisories@github.com)

IOC Correlations

No correlations recorded

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