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TI-2026-22678 Aliases CVE-2026-28403

Textream Cross-Site WebSocket Hijacking (CSWSH) vulnerability

Priority HIGH 66CWE-346Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-346.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00169 6th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed textream (f): 1.5.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ftextreambefore 1.5.11.5.1Patch availableCNA
  • textream Vendorf Affected before 1.5.1 Fixed in 1.5.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:fka:textream:*:*:*:*:*:*:*:*before 1.5.1Vulnerablef
  • cpe:2.3:a:fka:textream:*:*:*:*:*:*:*:* Versions before 1.5.1 Vulnerable ·f

Remediation

  • Fix · CNA textream (f) Fixed in 1.5.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-28403

References

Exploit 1

Patch 1

  • TI-2026-22686 Textream Vulnerable to Uncontrolled Resource Consumption (Denial of Service) CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences