CVE-2026-28412Public exploitNetwork attack vector

Application crash via unbounded WebSocket connections

Published Mar 2, 2026 · Updated Mar 2, 2026

Uncontrolled resource consumption in Textream before 1.5.1 allows remote attackers to crash the macOS app through WebSocket flooding. The handleWSConnection function appends every connection to an unbounded wsConnections array, while a 100 ms timer encodes state and sends it to every client on the main queue. Director Mode must be active; thousands of unauthenticated connections saturate the UI thread, freezing and then crashing a live session.

CVSS severity6.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in Textream before 1.5.1 allows remote attackers to crash the macOS app through WebSocket flooding. The handleWSConnection function appends every connection to an unbounded wsConnections array, while a 100 ms timer encodes state and sends it to every client on the main queue. Director Mode must be active; thousands of unauthenticated connections saturate the UI thread, freezing and then crashing a live session.

The record

CVE
CVE-2026-28412
Published
Mar 2, 2026
Updated
Mar 2, 2026
Vendor
Fatih Kadir Akın
Product
Textream
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fatih Kadir Akın · Textreamversion=< 1.5.1

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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